But when your full grown 18 year old boy is skinning cats you have a problem, a big problem. If your son is skinning cats for fun, crushing in their skulls, etc for ****s and giggles then I think you're a damn incompetent fool parent if you don't recognize there are deep psychological issues at play.
"I hope we shall crush in its birth the aristocracy of our monied corporations which dare already to challenge our government to a trial by strength, and bid defiance to the laws of our country." -Jefferson
This is burglary and theft / destruction of property - nothing more, nothing less.