When You're a Balerina, You Have to Run Up and Say, Oh, That's All Sketch

"The memories that haunt me are, if you've got a sketch that all relies on one turn of phrase, and that's the moment where everyone's going to start laughing," he says. "You just lit the firecracker that's supposed to set off every other firecracker ... You kind of overwrotea 17 the words pus."