Looks like he's already used to it.Had the same thoughts too. What led to this?
It's possible the dog knows without ever actually getting hit, but the video rubs me in a way that that's not the case here.
I've seen this video below, but I also get the feeling it's a set up and the dog may have been trained already...
Sorry for the Tok link, but I don't know how else to post it...
I agree the trauma for the dog is just to get content views.. or maybe those pet parents don't realize the effect on the dogs.