My 1 year old cat seems to have this problems where he tries to cover his poop WAY too much. I have never seen anything like it, he won't cover it with sand but will go get newspapers and cover it with that. And spend like 5 minutes doing this. And claw the wall. I suspect it might have to do with the fact he lived on the streets for months. I understand that cats in the wild HAVE to cover their poop for fear of being found out. Unless they are the dominant cat which I doubt he was. Is that the problem? It's not a big deal-but it does mean the box gets full of stuff after one use and I am constantly cleaning it or he won't have room to use it again. I don't really care except i do wonder how he will do when I go on vacation for 5 days in a few months. I mean I was hoping to get a few extra litter boxes and then have my neighbor only have to clean them once while i am gone. But now i am wondering if I will need to take him to a Kennel. And I wonder if I can eleviate his anxiety in this matter at all.