Those kids need an arse kicking

never invite her over or watch her sons ever again

It’s still property damage regardless. You could take her to small claims court if it matters enough to you. Also, if her kids are that old and still doing ridiculous things like that, it’s faulty parenting. You should distance yourself from them all; it’ll only get worse from here.

Her excusing their behavior is why they act the way they do. The rotten apple doesn't fall far from the tree. Expect to see them behind bars when they get older, they clearly are being taught they can do whatever they want without consequences.

Why did you have it out where they could get to it?

I agree that they are old enough to know better, but you bought it for your mother, your sister should reimburse her not you.

I despise parents like your sister. They don't properly raise kids and they end up like this. I can only imagine how bad they'll be when they're legal adults.

TIME to get mad at the nephews.

My husband’s nephews broke his switch controller and all we got was, well you should’ve known better shouldn’t have let them play with it. They are 7 and 9 and their parents bought them their own switch a month later..

If she won't discipline then in your house, you either remove them or discipline them. Their mom should reimburse you and be more aware of her teenage sons.