I think Canadians are great satirists because we sit in the middle of these two giants: Great Britain and the U.S.
Everything alters and changes with time. Some things that are considered triumphs, and 10 years later, they're considered minor.
When you get to a point where you're successful enough that you can say, 'I don't have to take any job anymore,' and you're still good at what you do, how do you decide what work to take on? I think the answer is that you pursue what you enjoy. In my case, it's variety.
I remember, as a kid, nothing struck me funnier than seeing Richard Nixon look into the camera and sincerely tell everyone he didn't know where the 18 minutes had gone from his tapes. But there was all this sweat on his upper lip. We knew he was lying. He knew we knew he was lying. But he was determined to tell the lie.
All you're trying to do in an improvisation is get as much material as possible for the editing room.