MIKE TYSON revealed that he would punch his fans in the face if they asked him for his autograph.
The 55-year old reflected on how out of control he was in his career, before he tried cannabis.
Mike Tyson thought about his past
Yahoo Finance's Iron Mike said that his life was "just miserable" and that he was out of control.
"I was fighting for everyone. I would punch anyone who asked for my autograph.
"I was just a mess. Then after I retired, i started smoking.
"What a mistake! I should have smoked all my career. It was a mistake to smoke while I was fighting, as it made me feel different.
"I am very relaxed, and the more relaxed that you are the better fighter in your case at least for me,"
American passionate about cannabis and is the owner of Tyson Holistic, a PS500,000-a month weed empire.
Tyson did have trouble with Marijuana towards the end of his career. His win over Andrew Golota in 2000 was downgraded after he tested positive.
He said that he had no regrets and added: "I broke his cheekbone, his eye socket, and his rib -- I should've been doing this from day one." I was stunned and said "Wow."
"I was fined, but it was well worth it."
Tyson took psychedelics to prepare for his return against Roy Jones Jr.
He also credits them for their impressive performances.
He said, "I consider it an enhancer. It makes me feel better, even when I am in the ring.
"The punches aren't as painful, it has a lot do with my comeback and the psychedelics."