An Apology
I wouldn’t say I took revenge. I just finally snapped like Ralphie from A Christmas Story one day and started shouting at him in the middle of math class. The teacher took me out of the class, and I figured that I was doomed and on my way to see the Headmaster.
She said she knew he was a bully, but shouting in her class was not OK, and to never do it again. Then she placed him in detention. The bully gave some kind of grudging apology the next day and said he respected me for finally standing up for myself. Well, thanks, I guess? He never bothered me again anyway.