hmm bullying. I was bullied quite bad at primary school. Mainly physicaly. I was the wimp, the weak guy and the only one who thought football was shit.
So it would be the "cool kids" would try push me around so I would in return verbally abuse them so they went mad and got in crap. It often didn't work as them getting mad got them more violent and then I got in even more shit.
By the time I got to high school though everyone had grown out of physical bullying and started verbal abuse and by that point I was immune to verbal abuse and half-decent at giving it. I still got shit for being weird and a smart-ass and being cocky but if any dished anything out at me I wasn't really bothered by it like other kids and was able to give it back which kept the "kool kids" away from targeting me.
As to bullying. Yeah at times I could be a bully. Mainly against people who tried to bully me though.
I know a lot of kids who had been bullied tried bullying me to make themselves feel better and raise their own social standing since I didn't really react much and had a habit of pissing people off (especially girls) so it was easy (in their minds) to bully me, look like a "hard guy" and turn people against me making themselves popular at the same time. Most regretted it as I would happily take the abuse and give it back laughing half the time as I actually enjoyed trying to outwit them all day.
Now that I'm an "adult" - in the loosest sense of the word - I've found that the bullyings far more political and more subtle. I still get stick off of some people for being a bit wacky and loud but most of them soon back off when they realise that I will keep on giving them shit back and not back down If they pick a fight with me.