"Box Bully." Lil' Guy is one, He hears any cat in the boxes He runs to harass them. This is one of the factors that will drive an otherwise good mannered litter box trained cat to go bad. I have been stopping him from this behavior. I hope it goes away. Or He will have to be in permanent time out when home. I can not monitor him full time at home.
You got your frigging hands full with the golden monster..