this isn't just a penis enhancer, it's a sex-substitute. keep to the Fen Causeway
Grab hold of the front paws and move them about 25-30 degrees sideways away from the body. It won't injure, but it should be enough to hurt. Basically continue widening until dog whimpers. Then just flex like you're gonna do more...yes you're scaring it.
It's a very good teaching aid if you dislike a dog and the dog will tell no tales.
I love dogs to bits, but I won't take sh!t from them either. keep to the Fen Causeway
Dogs do dominance games, they don't anthropomorphise themselves, they relate to you as an odd dog. You are either top dog or they don't give a shit what you think.
So if a dog wants to give you hassle, you don't negotiate, you metaphorically let it know you have its balls in a bag. keep to the Fen Causeway