Max and Buddy are 5 years old, been together for at least 4 years, and at all times we've lived in the same studio apartment. During the past month, I've come home from work to find that the cats have torn through the place, knocking things off shelves, scattering their litter box, etc. At first I thought the place was ransacked by robbers, it looked so bad. These are loving, affectionate cats when I'm home. They have lots of toys to play with. But it keeps happening. I love these guys, but I'm at my wits end. HELP!