 Response blocking, this one's really cool because it makes you feel like a ninja. Anyway, um, what we're dealing with here is actually stopping the behavior from happening. This is not extinction. Extinction allows the behavior to happen and is not meeting reinforcement. Response blocking is when a kid goes, HAH! To try to hit himself and you're like, HAH! They're like, HOOH! Not so wise young grasshopper. Or you place a demand and he tries to hit you and you block him again. Response blocking, get the idea. Or another one I've seen in clinic is kids going after other kids for wanting a toy. You block him from attacking the other kid and he doesn't get the toy. Response blocking.