Creation Records founder Alan McGee insists he has no lasting side effects from his years of drug abuse... but I'm not so sure.
First there's the crazy clobber, including wearing sunglasses indoors and a straw hat that's clearly too small for his meaty head.
Then there's the slight frothing at the mouth while he's talking.
Chuck in a couple of conspiracy theories and a UFO sighting, and Some Might Say the man who discovered Oasis is a bit of a nutter.
He laughs maniacally: "OK, maybe I am a loony, even though I don't take drink or take drugs anymore.
"I feel totally normal - but I guess I've must have been left with some collateral damage from all the abuse I did to myself."
We meet in Edinburgh, where McGee is performing a DJ set, which he's been doing since retiring from the music scene in 2008.
Alan's around 5ft 11ins, warm and friendly. But he can talk for Scotland about his rock 'n' roll war stories - including the time he got out of rehab for T In The Park, which returns for its 17th year this weekend.
He smiles: "Oasis played one of their best ever shows at the first T In The Park back in 1994.
"To this day the Gallagher brothers don't know I was actually there - they thought I was drying out in rehab.
"But I made it in time to sneak in with my sister Susan. It was the first time I'd seen them clean and sober - they were still great."
Born in Glasgow, the ex-British Rail worker moved to London and founded Creation Records in 1983.
He found chart success with the likes of The Jesus And Mary Chain and his mate Bobby Gillespie's band Primal Scream.
But the moment that has passed into musical folklore was when he watched new band Oasis in Glasgow's King Tut's in 1993 and signed them on the spot.
It's a story that's almost too good to be true as Noel and Liam Gallagher went on to sell more than 50million records [70million].
Alan, 50 year old, sniffs: "Well, it is 100 per cent true. What isn't true is the 5,000 people who also claim to have been at King Tut's that night."
But the man who was the face of Britpop and Cool Britannia era has a stunning confession to make.
He says: "I wasn't really into the music, you know. Music was just a job. I saw it as a way of not being a panel beater like my dad.
"I don't even like the music business. I made enough to leave it. I sold 60 million records in total. After that I didn't have to do it anymore."
Alan flogged Creation to music giants Sony for £30m back in 1999. Turns out that's only part of McGee's fortune.
He says: "Back in the 90s, my old man told me to buy property. So every time I got a royalty cheque I'd get a new place. I had loads, but only own five properties now.
"But I've still got the London office block I bought for £700,000 back in 1995 - it's worth £9m now.
"That was great. I banned everyone from the place except me and Bobby Gillespie.
"So I was rattling around in a quarter-acre, five-storey office building by myself, having Bobby around occasionally for company. It was ludicrous."
At the peak of his drug abuse, the Scot collapsed on a flight from Los Angeles after a cocktail of substances. He boasts: "The paramedics had to give me oxygen to save me - it was my rock 'n' roll badge of honour."
But while Alan managed to kick his addictions, one-time protégé Pete Doherty hasn't been as lucky.
In May, the former Libertines singer was banged up for a third time for drugs offences. Alan sighs: "I fear for Pete this time. Six months inside is a long stretch.
"It could have been me - I'm fortunate to have come through all the madness still alive. The thing is I've always been pretty dysfunctional and all the bands I signed were pretty dysfunctional too.
"That's why I would have signed Susan Boyle. She's a bit of a nutter - she'd have fitted perfectly into Creation."
He adds: "But everything I touched at the time turned to gold.
"I once took a Lear jet to Italy to do a DJ set. I was getting paid £5,000 for the gig and the jet cost me £100,000 for the weekend. [lol]
"But I didn't care - I couldn't stop making money. I even tried to set up a pay-per-view Oasis gig in Antarctica. We'd have sold it around the world for £10 a ticket.
"It would have easily made us £50m for just one gig. But Noel didn't fancy the cold."
Oasis also failed to break America, but Alan disagrees: "They did in a sales way - shifting eight to 10m records in the States. But you're right - there weren't American kids walking about like Liam, like there were over here."
During his heyday McGee was courted by everyone from politicians to royalty.
He reveals: "I turned down supper with Prince Charles at Buckingham Palace because I'm not a royalist.
"But I don't regret any of it. It was all like one big trip."
But things get really weird when Alan suddenly declares: "My life changed in 2007 when I saw a UFO in Santa Monica. There wasn't a cloud in the sky when this object shot by at about 2,500mph. I'm sure it was a secret military craft.
"It left me obsessed with technology because I started thinking, 'What else do they have?'
"Look at everyone with their smart phones now. There's going to come a time when you will literally plug your phone into your leg and you'll see images in your head."
Alan leans closer, and in a conspiratorial tone, adds: "Ever heard of Jack Parsons? He basically created NASA but died in a mysterious lab accident in 1952. He knew too much.
"What worries me is that technology will eventually be used to affect our emotions. I don't want computers screwing with my mind."
Oh, I think the drugs beat them to it...
He prattles on: "There's 64 parts to human DNA and only 20 of them work - so what are the other 44 parts for? What happens when they are all switched on?"
Back on planet Earth, Alan lives the quiet life in rural Wales with wife Kate Holmes [Client band] and their 10-year-old daughter Charlotte.
Alan - whose documentary Upside Down: The Creation Records Story is out now on DVD - says: "My daughter hates Oasis and all the whole Britpop era. She now tortures me with Glee.
"But I'm fine with that. I once said to Noel Gallagher, 'I will always be known as the Oasis guy'.
"And he replied, 'Same here [LOL]- but it could be worse, you could have been the guy who discovered The Darkness'."
First there's the crazy clobber, including wearing sunglasses indoors and a straw hat that's clearly too small for his meaty head.
Then there's the slight frothing at the mouth while he's talking.
Chuck in a couple of conspiracy theories and a UFO sighting, and Some Might Say the man who discovered Oasis is a bit of a nutter.
He laughs maniacally: "OK, maybe I am a loony, even though I don't take drink or take drugs anymore.
"I feel totally normal - but I guess I've must have been left with some collateral damage from all the abuse I did to myself."
We meet in Edinburgh, where McGee is performing a DJ set, which he's been doing since retiring from the music scene in 2008.
Alan's around 5ft 11ins, warm and friendly. But he can talk for Scotland about his rock 'n' roll war stories - including the time he got out of rehab for T In The Park, which returns for its 17th year this weekend.
He smiles: "Oasis played one of their best ever shows at the first T In The Park back in 1994.
"To this day the Gallagher brothers don't know I was actually there - they thought I was drying out in rehab.
"But I made it in time to sneak in with my sister Susan. It was the first time I'd seen them clean and sober - they were still great."
Born in Glasgow, the ex-British Rail worker moved to London and founded Creation Records in 1983.
He found chart success with the likes of The Jesus And Mary Chain and his mate Bobby Gillespie's band Primal Scream.
But the moment that has passed into musical folklore was when he watched new band Oasis in Glasgow's King Tut's in 1993 and signed them on the spot.
It's a story that's almost too good to be true as Noel and Liam Gallagher went on to sell more than 50million records [70million].
Alan, 50 year old, sniffs: "Well, it is 100 per cent true. What isn't true is the 5,000 people who also claim to have been at King Tut's that night."
But the man who was the face of Britpop and Cool Britannia era has a stunning confession to make.
He says: "I wasn't really into the music, you know. Music was just a job. I saw it as a way of not being a panel beater like my dad.
"I don't even like the music business. I made enough to leave it. I sold 60 million records in total. After that I didn't have to do it anymore."
Alan flogged Creation to music giants Sony for £30m back in 1999. Turns out that's only part of McGee's fortune.
He says: "Back in the 90s, my old man told me to buy property. So every time I got a royalty cheque I'd get a new place. I had loads, but only own five properties now.
"But I've still got the London office block I bought for £700,000 back in 1995 - it's worth £9m now.
"That was great. I banned everyone from the place except me and Bobby Gillespie.
"So I was rattling around in a quarter-acre, five-storey office building by myself, having Bobby around occasionally for company. It was ludicrous."
At the peak of his drug abuse, the Scot collapsed on a flight from Los Angeles after a cocktail of substances. He boasts: "The paramedics had to give me oxygen to save me - it was my rock 'n' roll badge of honour."
But while Alan managed to kick his addictions, one-time protégé Pete Doherty hasn't been as lucky.
In May, the former Libertines singer was banged up for a third time for drugs offences. Alan sighs: "I fear for Pete this time. Six months inside is a long stretch.
"It could have been me - I'm fortunate to have come through all the madness still alive. The thing is I've always been pretty dysfunctional and all the bands I signed were pretty dysfunctional too.
"That's why I would have signed Susan Boyle. She's a bit of a nutter - she'd have fitted perfectly into Creation."
He adds: "But everything I touched at the time turned to gold.
"I once took a Lear jet to Italy to do a DJ set. I was getting paid £5,000 for the gig and the jet cost me £100,000 for the weekend. [lol]
"But I didn't care - I couldn't stop making money. I even tried to set up a pay-per-view Oasis gig in Antarctica. We'd have sold it around the world for £10 a ticket.
"It would have easily made us £50m for just one gig. But Noel didn't fancy the cold."
Oasis also failed to break America, but Alan disagrees: "They did in a sales way - shifting eight to 10m records in the States. But you're right - there weren't American kids walking about like Liam, like there were over here."
During his heyday McGee was courted by everyone from politicians to royalty.
He reveals: "I turned down supper with Prince Charles at Buckingham Palace because I'm not a royalist.
"But I don't regret any of it. It was all like one big trip."
But things get really weird when Alan suddenly declares: "My life changed in 2007 when I saw a UFO in Santa Monica. There wasn't a cloud in the sky when this object shot by at about 2,500mph. I'm sure it was a secret military craft.
"It left me obsessed with technology because I started thinking, 'What else do they have?'
"Look at everyone with their smart phones now. There's going to come a time when you will literally plug your phone into your leg and you'll see images in your head."
Alan leans closer, and in a conspiratorial tone, adds: "Ever heard of Jack Parsons? He basically created NASA but died in a mysterious lab accident in 1952. He knew too much.
"What worries me is that technology will eventually be used to affect our emotions. I don't want computers screwing with my mind."
Oh, I think the drugs beat them to it...
He prattles on: "There's 64 parts to human DNA and only 20 of them work - so what are the other 44 parts for? What happens when they are all switched on?"
Back on planet Earth, Alan lives the quiet life in rural Wales with wife Kate Holmes [Client band] and their 10-year-old daughter Charlotte.
Alan - whose documentary Upside Down: The Creation Records Story is out now on DVD - says: "My daughter hates Oasis and all the whole Britpop era. She now tortures me with Glee.
"But I'm fine with that. I once said to Noel Gallagher, 'I will always be known as the Oasis guy'.
"And he replied, 'Same here [LOL]- but it could be worse, you could have been the guy who discovered The Darkness'."