People keep fucking up my books and I’m pissed

why do I keep letting people borrow my books if they just tear them and spill their drinks on them? they tell me they’ll be so careful and then they ruin my books. half the time they don’t even take the time to read them. they just say they want them and then they collect dust on their shelves or get thrown around their backpacks and I get them back and the pages are torn or folded or the spines are broken. they talk about how cool it is that I annotate them and then they either don’t even read them or they spill their shit on them and make them wash away. I don’t want to let people use my books anymore. I am very sad.