MemorycareRN

I need some advice please. I have a new resident who has an almost compulsive habit of destroying rolls upon rolls upon rolls of toilet paper in his room. He is stuffing the paper in his pants. When asked why, he replied "why, are you jealous?" then stated it was for his rash. He doesn't have any skin breakdown. His son brought in looser fitting underwear thinking maybe it was chafing his groin, but no luck. That wouldn't be such a big issue, but he is also ripping and shredding the TP and using it as room decoration. hanging it from his blinds, placing it on flat surfaces, throwing it all over the floor, etc. When he runs out, he asks for more. If we do not give it to him, he goes to other resident rooms to take theirs. He has been very pleasant so far, but quiet and VERY difficult to engage in any sort of conversation or activities. Has anyone out there run into this kind of behavior? What helped?