Pacifists who are so obstinate they make pacifism look bad

Satine Kryze (Clone Wars) - She's too afraid to pull the trigger and shoot a man who's about to blow up an entire ship. Anakin has to do it for her. Sticking to one's ideals is great and all, but she would have let everyone die to do so.

Gohan (DBZ, Cell Saga specifically) - For some reason, he decides now is the time to not fight or kill, when everyone's life is on the line.