One of the things that I think also needs to be discussed is, if a bully is unexpectedly nice to you, treat it with suspicion. I remember a bully gave me a Christmas Card! Often times, they can just after more ammunition to use against you.
An incident that I remember that was particularly touching for me, was, I remembered, one day, a guy in my class asked me if I was afraid of dying. And another guy in the class's mother had died a few weeks earlier, and he asked me what the other guy had asked me, and it upset him. But, that's not the crux of it. A renowned bully in the class was tormenting the kid about his mother dying, and the principal heard about it and it went up there. The principal was going to cane the bully but the boy whose mother had died asked him not to and told him that the bully was giving me a hard time, and the principal said he'd cane the bully if he heard of it, again.
With this bully, if the principal had called him in on the first day of term and said, "We're going to make a deal, you and I. I've got a $2 note here. If you can refrain from bullying for the entire term, on the last day, I'll buy you lunch from the canteen. You can have say, a jaffle with the filling of your choice, a drink, and a packet of chips, or a pie and a donut, or a pie and a drink, or a hot dog, a slice of pizza and an ice block. But, if you bully anybody, you'll get six cuts of the cane everyday until the end of term," he would have said, "Yes, Sir," walked out of the office and started bullying. If you'd reported him, he would have said, "Oh, great, you cost me my lunch on the last day, you great pain!" and sat and sulked.