I'm a total biology and medical nerd. Here are just a couple of examples.
- I'm watching spongebob (oops, guess that's geeky too

) and thinking "Wow, his parents are round, squareness must be recessive, if it's controlled by one gene..."
-At work I'm thinking about transplants and immunology and say "Man, it sucks to be a woman. HLA typing is harder once you have kids, you have potential markers against your baby daddy and babies!"
I do like World of Warcraft- haven't been playing lately because money and time are tight, but I do enjoy it.
I'm sure there's plenty more, but I was the one in high school that corrected the horrible spelling and grammar in the bathroom stalls... Yep. I'm so cool.