Perhaps it is the thrill of power, the sense of control, that propels a bully toward wanton acts of violence and cruelty towards those who can not easily defend themselves. It is no doubt a reaction to a life at home where the rules and the constant nagging of parents about things a child deems “stupid” or “idiotic,” causes the child to feel powerless themselves. Maybe it is being exposed to unseen or untold brands of violence, unexplained and unmitigated, that make a child feel the need to duplicate what they have seen. You could ask, but very few bullies will ever come clean honestly about what drives them.