When I do something good, the audience lets me know immediately. They laugh. That's it.
Anything you can suck at should make you nervous.
Bill Cosby was the first comedian I was exposed to, because he doesn't curse.
I was at Michael Jackson's house, and this kid runs out, 'Wait, save me!'
That's a sure sign someone is going crazy - when he refers to himself in the third person, talks in low tones, and walks around wearing shades all day!
Does having a wife and kids change your act? Yes, but only in the best way. It gives you weight and authority. It also makes you closer to the audience because the audience is married and has kids.