Summer == allergy season, therefore Meghan == dead. If Danny didn't die first from asthma attack.

Harry doesn't know that he's supposed to be a prey animal. I suspect he would try to boss the cat around. Which might actually work, owing to the whole grooming thing. (With cats, the animal doing the grooming is the dominant one. With rabbits, it's the one lying down demanding to be groomed.) However, if this cat is actually living off stuff it's hunting, it would probably be more intimidating than your average housecat.