I had an moronic boyfriend decades ago that was a total idiot. He had a shetland pony that needed to be put down. He decided to take it out in the desert and shoot the poor thing. What a freak. I don't know what kind of gun he used but whatever it was, it was not powerful enough, that poor pony had an agonizing death.
What a way to put down a beloved pet, blow it's head off.