Black mailing

My family adopted stray kittens they were very small. My dad got angry at us and The box of kittes he pushed it at the stairs. well none of the kittens were hurt. he starts abusing our pets. he said to me "you can never be a vet" my dreams were crushed it was my dream ever since i was a kid and he just crushed it just like that a single damn sentence. he'll say "your bird is going to die" "i will poison your cats if they start scratching me again" even though me and my sister we're scratched deeply we didn't overreact.Even if we tell it to our mom she doesn't believe even if his doing it infront of her. He has two faces even to his own mother nor siblings he is rude.If its his colleagues he will show a smile on his face pretending he is a good father.