What are examples of adversive conditioning?

You are in the phone conducting business. Your child is playing the screaming game very loud as you are on the phone. You tell the child stop screaming, I'm on a very important call, please. The leaves and comes back in the room, stands right next to you. and screams once again while your on the phone, and laughs. You pop the child in the head.

The child learns that if the parent tells them to be quiet, while they are on the phone. The should do so until the parent is done with their business.