There's this kid I've been riding with for quite some time that keeps borrowing my bike non-stop leaving me riding his broken bike. Not that I dislike him riding my bike or anything, is just that Everytime I lend him my bike he will be crunching gears uphill, skiddding and knocking on stuff carelessly and my bike will end up having problems, and when I told him my bike has a problem he will say it's not his fault and I end up using my money to fix it. He is riding a folding bike with everything loose and a mountain bike that is at his home that is broken, he is not even bothered to fix both of his bikes. Once, he asked to borrow my bike again and I say no, he looked like he is upset and a bit angry. Is there something I can say to avoid lending my bike to him?
P.s. is this question okay to be posted in this website? If not I'll delete it and I'll just keep lending my bike to him.
This is closed as a duplicate of https://interpersonal.stackexchange.com/questions/21719/how-can-i-avoid-borrowing-my-bike