Welcome to Pet Talk. If Pip doesn't calm down, there are drugs that you can give him, one of which is called Clomicalm but you need your vet to prescribe it. Four of my cats have been on it for several years w/no side effects whatsoever but each cat is different (just like people) so I'm not saying that will be the case w/yours. It's used on dogs w/separation anxiety or aggression but it's now routinely prescribed for cats w/behavioral issues and inappropriate spraying. Mine are on 5 mg. at night before bed and there is no more aggressive behavior from Specs (the original troublemaker LOL) and no innappropriate spraying. I realize that neither problem is what you mentioned but since Pip does seem to have a few behavioral issues, Clomicalm is definitely worth a try. It may take a few weeks before it starts to work and you cannot miss a dose but I was fortunate in that it started working right away. Good luck and please keep us posted.