They should make you mad.
It's not uncommon for dogs to fear thunder or loud noises & not necessarily abuse, they just aren't used to it. At one point
we were taking care of an English Sheep Dog who freaked out in thunderstorms. He never got completely over it, but did
get better.
I've heard of the bit w/ animals taking over rival groups, in this case big cats. It's more of an instinct to kill the offspring
of rival males as opposed to "sport". Mating season just makes them more aggressive.