Every set has their own personalities and their own quirks. It's funny comparing starring in a show to going in and doing recurring work - there's already a rhythm that's been established, and people know each other so well. It's like being a guest in someone else's home.
I love Chuck Lorre. I did a little guest spot on 'Roseanne' when I was fourteen. It was a whirlwind experience in a week and I think with Chuck, I had auditioned for him for a couple of other shows of his over the years.