Musicals are hard for me because I got thrown out of the glee club in high school, because I couldn't sing in tune at the time. I can sing in tune now, but I have to work really hard on it to make sure that I don't exercise one of my great talents, which is the ability to sing in three keys at the same time.

What I can't completely understand is most other people's fascination with what the famous among us do with their lips and the rest of their bodies. Why do ordinary people become the target of this curiosity simply by virtue of the fact that other people recognize their names and faces but know nothing else about them? Why do we care what they think, what they wear, what they eat?

In 2003, I almost died of an intestinal blockage when I was on a mountain in Chile, filming a segment for 'Scientific American Frontiers.'

During the first day, curious at having outsiders among them, a long stream of inmates came over and talked with me. Remarkably, according to what they told me, nearly every inmate in the prison didn't do it. Several thousand people had been locked up unjustly and, by an incredible coincidence, all in the same prison. On the other hand, they knew an awful lot about how to knife somebody.

I still don't like the word agnostic. It's too fancy. I'm simply not a believer. But, as simple as this notion is, it confuses some people. Someone wrote a Wikipedia entry about me, identifying me as an atheist because I'd said in a book I wrote that I wasn't a believer. I guess in a world uncomfortable with uncertainty, an unbeliever must be an atheist, and possibly an infidel. This gets us back to that most pressing of human questions: why do people worry so much about other people's holding beliefs other than their own?

I'm in the real world, some people try to steal from me, and I stop them, frequently, take them to court. I love a good lawsuit. It's fun.

I was brought up as a Catholic, and I'm no longer a Catholic. I don't talk about my beliefs too much in public probably because I feel very strongly that it's something personal - more than personal, it's private.