Our friends don't always know us as well as they think, particularly when it comes to likes and dislikes. Which popular book, movie, band, food, TV show, etc. would your friends be surprised to hear that you don't like?
Twilight? -Yes, Edward Cullen made me barf!
Tofu? -I know I am vegetarian, but fuck I cannot seem to eat it! I just cannot! *bleh*
Though, I think my so called friends and my family know I am weird and dislike a lot that is popular, mainstream and/or normal.