Actor Kal Penn often lets fans down when they realise he isn't the "stoner" he portrays on the big screen.
The Asian-American star of the Harold + Kumar films is often high onscreen, but he insists he has never so much as smoked a joint in real-life.
Penn says, "It's sad for the people who offer me a joint because I don't smoke weed in real life. I was also a vegetarian when we shot the first movie (Harold + Kumar Go To White Castle) - and that was about burgers.
"I don't go out of my way to tell people I was a vegetarian or that I don't smoke weed, because I don't want them to be disappointed.
"If you want to keep the suspension of disbelief that's OK, but then sometimes it's weird."