My brother used to say that when you deal with women, it's difficult to remove emotions from an argument. I never really knew what he meant. Then I read an article that said when it comes to emotion and logic, men's and women's brains are different - my brother was right! Women are very mysterious, but that's part of their joy.

Being in the industry, I've seen many situations where someone will get the call from the network where they say 'You guys have 5 episodes to wrap it up.' Then all your long-term story arcs gotta get wrapped up in five episodes because that's how many episodes you got left. I would hate to see that happen to 'Castle'.

Karaoke is something that's near and dear and very close to my heart. I was a karaoke host when I was working my way through university. I was a full-time student and karaoke was my night job.

I remember when TiVO first came out I was all about TiVo. I came home and that thing was frozen, and I thought 'This is awful. This is the end of the world'. Then I unplugged it, and I plugged it back in, and still frozen. It was paralyzing. I called them. They said, 'Just unplug it longer.' Fixed. But it also taught me I'm an addict.

I realized, dumb people don't know they're dumb. When people try to make me laugh and they try to be funny, that's when they lose me. I find a lot of comedy in honesty.

It's hard to shake a stick at success.

Thank God there is a such thing as hiatus. We got the first 'Dr. Horrible' done in six days, we banged it out.