Genres people are surprised you don't like

Of movies, tv, books, or music.

I have a dry sense of humor, and easily make people laugh. It seems to surprise a lot of folks that I don’t like comedies and sitcoms as a general rule. I’ll occasionally give in and watch one on DVD or cable at someone else’s behest, but I have no interest in paying to see them; the last comedy I saw in the theaters was High Fidelity, and only then because the horror movie we wanted to see was sold out. How i Met Your Mother is the first sitcom in years I’ve followed for more than a couple of seasons, too.

So what genres of whatever are you “supposed” to like, but don’t? Why are people surprised that you don’t like it/them?

I’m mainly an indie/rock/punk fan, but one subgenre that just turns me off is a certain kind of dark, brooding indie: Joy Division, Interpol, At The Drive In, White Lies - no thanks.