May 29 2005 - David Letterman also went through a phatty phase in his younger years. In a pair of interviews with Playboy magazine, he described his pot experiences.
"I went through one period when I smoked a surprising, a really breath-taking, amount of grass almost every night," Letterman told Playboy. "One night I smoked down a big joint and then went downstairs and ate two pints of Haagen-Dazs ice cream and then went back to bed. An hour later I woke up and thought my heart had stopped. And the next day I went to a cardiologist and he said, 'Well, no, it didn't stop. Everything's fine.' And that was the end of my pot experiences."