Is there any anime show, movie, or OVA (or manga series) that you like that you are kind of ashamed to tell people you like?
There are a couple for me personally:
Digimon (all seasons)
Yu-Gi-Oh
Akira (yeah, this may not really count but everytime I say I like it, people tell me how much they don't)
As for manga, there really isn't much, but I still feel weird being a guy and buying Hana-Kimi, Fruits Basket, or
Kare-Kano from a store.