Well I didn’t watch them 24/7 if that’s the burden of proof now. I guess they treated all their dogs roughly the same though and for some reason the one whose breeding description essentially reads " Psychotic mauler of all that breathes" behaved accordingly.

Border Collie of a friend is trained to work with mentally ill kids (of course his training isn’t that specific but that’s what he does) Anyways in his spare time he herds everything. When the wind piles up leaves he will run around that pile frantically barking at every single leaf that falls out of line. “Herding cats” lost all its appeal as a figure of speech to me, as i’ve seen him do it successfully.

If you’re suggesting my neighbours trained her to be aggressive - they didn’t - it was their family dog, they did the standard obedience training (sit, stay…) but no protection training. All their other dogs (german shepherds) were friendly.

My neighbours had a small hunting terrier when i was a kid, forgot the name of the breed. Fucking asshole dog tried to bite me every time she saw me although i went in and out there every day. Also she killed everything that moved, cats, birds, hedgehogs, …

Neighbour was a hunter and those fuckers were bred to follow badgers into their sett and kill them. Badgers can be quite nasty themselves so most animals stay away, but not this breed. Only chance the badger has is to kill the dog, even if half of its nose is bitten off, it doesn’t give a shit.

So I’m a bit sceptical about the whole “aggression is not bred” theory.

Friend of mine hadn’t ever seen a newborn baby before she gave birth. She was quite shocked when her newborn daughter “looked like an old man”