He was so ashamed of who he was (and still is) that he tries everything in his power to make others feel as ashamed and powerless as he felt as a child.
http://jezebel.com/5979805/honestly-being-the-last-one-picked-in-gym-class-messes-you-up
I'll never forget how it felt to be picked last by my peers during P.E., day after day, year after year, the heat rising off the asphalt and my cheeks as I waited in line until I was inevitably left standing
alone, again.
As a result of such perennial rejection, I never tried out for any sports teams or learned to do anything but grimly endure most forms of exercise, and, nearly two decades later, I still make up excuses when my friends invite me to join in even the most low-key and "fun" athletic activities.
There were deeper psychological repercussions, too: I grew into a rather bratty tween
once it dawned on me that I could make people feel small with my words. (Just imagine if Napoleon grew up playing dodge ball.)
"I'm trying to pin down what was so particularly horrible about it, besides the obvious - and I think I've got it! It's the fact that everyone is witness to your shame."