Makoto from Futari Ecchi.
Spoiler (highlight to view)
After the fantasy with his daughter, I just wanted to strangle him. What kind of dad even imagines crap like that?
Any shoujo/smut character that forgives and then befriends their molester. I always want to go in, and yell at them.
Hmm, I think stupid characters in general annoy me.
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"I've seen a look in dogs' eyes, a quickly vanishing look of amazed contempt, and I am convinced that basically dogs think humans are nuts." -John Steinbeck