The bad thing about being a famous comedian is that every now and then someone approaches me to tell an old joke. Don't tell me jokes - I have that. People also say the weirdest things, sometimes sarcastic things, and even evil things. They like to provoke to get a reaction.

I'm standing behind a wall of jokes. You don't know about my personal life, my girlfriends, or what I do when I'm not on the road. There's this guy, this comedian, and this is how he thinks, but people really don't know anything about me.

Little fussy Otto, in his red-lined black opera cloak with pockets for all his gear, his shiny black shoes, his carefully cut widow's peak and, not least, his ridiculous accent that grew thicker or thinner depending on who he was talking to, did not look like a threat. He looked funny, a joke, a music-hall vampire. It had never previously occurred to Vimes that, just possibly, the joke was on other people.

Smile well and often, it makes people wonder what you've been up to.

The appreciative smile, the chuckle, the soundless mirth, so important to the success of comedy, cannot be understood unless one sits among the audience and feels the warmth created by the quality of laughter that the audience takes home with it.

Man is the only animal that laughs and has a state legislature.