It's not unfamiliar or different, it's extremely familiar. Like when you get an answer wrong in class and one of the other kids goes "HA HA Dummy!" His intent i

It's not unfamiliar or different, it's extremely familiar. Like when you get an answer wrong in class and one of the other kids goes "HA HA Dummy!" His intent is clearly not to help you learn something or to simply state you're wrong, his intent is to elevate himself at your expense. The word to describe this, among many other behaviors, is to act childish.