I’m always for burning the whole place down. If the parents are this horrible, just lay it on them. Tell them, “BTW, before you come, you should know we have your cat you left outside when you went away on vacation, and now he’s a well cared for house cat instead of suffering and dying with a terrible wound you didn’t get treated and he’s enjoying not being neglected and actually cared for in a safe indoor home. I’m sure you’ll have no problem finding another cat to neglect if that’s what you really want--the shelters are full of homeless cats.”

If you’re lucky, LW, they will get mad at you on the phone and cancel visiting you. Yay! All problems solved. Live a little for once. And love up that kitty.