Misa....
and her begging nature....
and her complete obediance without questions or mentioning any other possible ideas
and her stupidity 95% of the time...
pisses me off...
Gourry Gabriev from Slayers. I don't know if I'm the only one who feels this way, but I have a sneaking suspicion that Gourry is actually a very wise man and only acts like a moron to tease Lina and to give her a feeling of leading the way.
Haru Miura (86) from Katekyo Hitman Reborn. She is the stupidest character ever that I ever seen because she just don't know that Tsuna loves Kyoko and NOT her!!! Sometimes I just can't understand why she had so many fans!