I remember going to Bob Preston's dressing room because I was losing a laugh - as you do in a long run. He said, 'Give me the script. That's where you're going off the road.' That's comedy. It's never the line itself; it's in the foundation.

Probably because I'm bald. Don't the bald people always play doctors and principals? Yeah, isn't that funny? And lawyers. A lot of lawyers and judges.

You keep your head down and you work and work, and all of a sudden you pick your head up and people are receiving it the same way we're sending it. They're thinking the same things that I'm thinking about the show.

The most telling one was recently on a plane. This guy very dressed up and formal - the watch, the shoes, the cufflinks, the whole nine yards - he came at me, and I thought I was going to get nailed. But he literally came up to me and just gave me a hug and said, "Thank you for introducing me to a subject that I didn't know anything about." In those moments it always clicks for me what we're doing here.

Carlos Castaneda always said, "If you're going to do something, do it impeccably."

I remember going to Bob Preston's dressing room because I was losing a laugh - as you do in a long run. He said, 'Give me the script. That's where you're going off the road.' That's comedy. It's never the line itself; it's in the foundation.

Mel Brooks and David Zucker - there are very few people who know silly, and they're usually hugely intelligent, because you have to be intelligent to get it. Like the Marx brothers. I love it.