When I was in high school I had several run-ins with this moron who took exception to having to attend the same school with a kid in a wheelchair. He and two of his friends decided to make my life a living hell. At first, I just tried to ignore them, but after a while, their behavior started to grate on me. One day, they decided they were gonna slap me around, and when they tried, they were surprised when I fought back. The instigator tried to punch me in the face, but, sitting down, I was able to duck that with no trouble, and when was regaining his balance in mid-swing, I slammed into him with my wheelchair. The impact wasn't too powerful, but it did knock him down. One of his buddies was surprised I was able to defend myself, and at the same time, decided to switch sides, and he ended up helping me chase his friends off. The other two never bullied me again, and he and I were friends for several years after that.
Sadly- and I say sadly because I'm most definitely not of the "hit back" opinion, in fact I'm dead against it- a lot of us have this experience. It's often the case that a response like that gets them off your back. In some cases, at least. The one and only act of violence in my life so far (and I mean, only- I've never had any sort of aggressive instinct (on-line sink-my-teeth-in-arguments are a different sort of aggression


Either way, I've never been able to forgive myself for the violence. Still, I'm more angry at the fact that it was needed to get him off my back than I am for using it. There's more fault to be found with other people than myself, in this case.
Well, the sensible pacifist knows that there are times when, sadly, the greater good (even if it's just your own greater good) necessitates violence. In fact, sometimes you can get the best of both worlds- people will respect you for your generally non-aggressive, friendly attitude a lot more when you show that on occasion you will deviate a bit.