I have an older brother who is, lets say, retarded. That's not really it, but it comes close enough without a lot of explaining to his history and etc. Another way to say it is that my 37 year old brother is in many ways just like a 14 year old boy.
Jim had a dog, a mutt named Jack. Jim took the dog for a walk alongside a curvy road at night without the dog on a leash, even after I told him to put the dog on a leash as he was walking up the driveway from my parents home (Jim lived there at the time).
It wasn't two minutes after I gave Jim that warning that the dog was dead, hit by a car. I didn't see it, but I heard it and knew immediately what happened. Jim was absolutely devastated as you can expect, and who can blame him?
Three weeks after the dogs death, my stepmother gave Jim another dog, a golden lab named Page. Jim didn't want the dog, said he didn't deserve it because he didn't take care of Jack (a pretty introspective observation from Jim and one that I didn't expect), but Jan pushed the dog on Jim anyway, saying that "you need to learn how to take care of animals."
Well, Jim fell in love with the dog. She was a good dog, smart, good-looking, happy, etc.
After a while, Jim got tired of living with my parents, and for good reason: my stepmother used him for free labor constantly, even to the point of waking him up at 2:00am to have him move furniture, making him take a week off of work so he can patch the roof, crap like that. So he told them that he was planning on moving out and living with a guy he knew from work.
Whereupon my stepmother told him "If you move out of this house, I will have to put Page down."
Jim was devastated, and cried for three days. You likely have no idea what it's like holding a 35 year old retarded man who is sobbing like a six year old, but I gotta tell you, it sucks
Anyway, he moved out and she kept the dog. She didn't kill it though, but she took it with her when they moved the company to Tennessee.