If your kid ever has to deal with it, teach them how to take care of themselves. Then SUPPORT them if they ever have to act on it. If they defend themselves and get in trouble for it, go to the school and back them up. As always, the peaceful approach is nice, but in the real world it rarely ever works. Understanding ideals like peace takes a little bit if intellect............ not a strong suit for most bullies. A bloody nose? THAT they understand.