Will Ferrell "continually lets people down" with his lack of playful nature.
The Hollywood funnyman is famed for appearing in a string of hit comedies, including Anchorman: The Legend of Ron Burgundy, Blades of Glory and Old School.
Will is currently promoting political comedy The Campaign and has revealed the pressure on him to instigate laughter wherever he goes.
"I know I am continually letting people down when they come up to me. They approach me with the sense of, 'He's going to do something funny,'" he told USA Today.
"I don't feel any pressure to have to do it. Sometimes you're in a mood to be playful. Other times you have to be somewhere or you have your family. I have no problem with going, in a polite way, 'I have to go.' When someone yells out a line from a movie I've done, a lot of times I can't remember what the line is."
Will stars alongside Zach Galifianakis in the Jay Roach-directed comedy. The 42-year-old star attracted attention for his role as Alan Garner in the hugely successful The Hangover films and admits there is a certain pressure on him too.
"It's an asymmetrical relationship. I am not the guy from The Hangover, and people expect that. They think of you as a cartoon character," he revealed. "And they're disappointed when you want to go about your business and urinate.
"Attention is not what we're used to. I want to observe. I had a really bad attitude about it a couple of years ago. I used to watch people. My guard was up. Now I don't care as much. And I can shave and it's no problem."
© Cover Media