At least make sure they know when they’re pups that you can kick their ass, and never back down after - it worked on my son who’s a foot taller than me now, so it ought to work on a dog...
LOL.
BTDT.
LOL! But keep in mind, your son wasn’t bred to fight and I doubt he has a genetic makeup subject to brain lesions that cause him to have spurts of uncontrolled violence. See my tag line, the 2nd part applies to Pis as well.