play rough with your pups. nip their skinny ankles, snap at the achilles. flip them on their backs and pin them down. you are their master, make them know it. twist their fur in your jaws and wrench it hard, when they’ve done wrong don’t let them rest. back them into corners. goad them, make them snarl. draw their blood and shove their noses in the puddles. keep their errors current, no piss stain forgotten, no accidental bite and no ignored command. they will try to forget — don’t let them. train them up to fighting dogs for back-alley snarling circles, gnashing teeth with larger beasts of less formal education. teach them to fight by fighting, only then will they survive.