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.

It's very relaxing to pet a Chihuahua.

Chihuahuas

Hmmm… have you seen their owners? Yeah, it’s the owners.

This is true but it's part of what makes chihuahuas awesome. My ex had a chihuahua that we raised from a puppy. We were totally nice and he was still psycho. He would attack me if I woke him up too early in the morning. I had to pick him up in a huge pillow as defense. He would go bananas trying to attack strangers but it's only because he was "defending" himself and our pack. The worst part of breaking up is missing that dude. Awesome dog.

Also lots of chihuahuas are totally chill.