They destroy doors (one's claws are scalpel-sharp and the scraping can be heard across the house) or carpet (I've had carpet destroyed by locking one out before

They destroy doors (one's claws are scalpel-sharp and the scraping can be heard across the house) or carpet (I've had carpet destroyed by locking one out before and the crying is not quiet either) trying to get to their parents (the behavioral cues show that I'm a parent to them) due to some serious separation anxiety it seems, and they make frequent trips to the litter box or water bowl (male cats are known to get kidney disease oftentimes which results in excessive drinking and urination).