I have No. Idea. Seriously. I think we need to get him some help. :/ And of course his father doesn't think it's a huge problem, but it is.
No, he won't tell us anything. He just says "I don't know". My mom had to throw out a bunch of his underwear and pajama bottoms and a new pair of jeans. I definitely think there's something wrong and he needs professional help.
We bleached everything after we made him clean it, so. It's not too bad. I feel sick thinking about it though.