Scottish actor and standup comedian Billy Connolly - who turned 74 this week - is best known for cracking people up with his outrageous observational jokes. But he actually began his career in show business in the 60s as a marijuana-smoking folk singer. And the experience may have cost him his soul.

No, Connolly didn't make a Faustian deal with the devil to succeed. The incident involved him and singer-songwriter Gerry Rafferty - his bandmate in The Humblebums - making do without rolling papers one night.

"We smoked a bible once," Connolly admitted during a 2012 interview with Conan O'Brien.

"You and Gerry Rafferty smoked the bible?" O'Brien said in disbelief.

"Well, it was the 60s..." Connolly said. "We were in this guy's house and we were all drunk. And I had some hashish. Goodness knows how it got in my pocket....And I got it out toward the end of the night and said, 'Anybody got any papers?' Or 'skins' as we used to say -- us cooler guys. And nobody had any papers. And I said, 'Well, I saw a prison movie once and they were smoking the bible.'"

So he went up to the guy who owned the house and asked if he had a copy of the "good book" kicking around.

"I said, 'You wouldn't happen to have a bible, would ya?'" Connolly recalled. "I just want a couple of pages."

Check out the rest of the story in this clip.

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