Digging and tail chasing?
Tobay it seems love to well, chase his tail, Nero's tail, Kyra's tail (dog) if it has a tail he likes to chase it. Bt his favorite tail to chase is his own.
Best of all, he gets ANGRY if he bites his own tail. he will look for the "culprit" find no one and go right back at it.
Next is he plays in his litter box like it was the best toy ever invented. I mean if we did not have an enclosed box there would be litter EVERYWHERE. And its not excessive covering or prep work either, we have watched him jump in, fling litter everywhere then jump out and run away.
Both behaviors leave us fairly confused. he has toys in the form of objects, people, and a dog and a cat, why these behaviors as well?