Well
that's really weird! They didn't give very many details other than it was an indoor cat. How long have they had the cat? How old is it? Where did it come from? My sister has two cats; one that has lived with humans since kittenhood and another that's an adopted stray (although he's so friendly that he must have had contact with peoople at some point). The adopted stray has very strong feelings about staying in or out at night (in when it's cold, out otherwise) and won't curl up with anyone.
Her Majesty is the most sweet-tempered cat. She gets the crazies once in a while (at new moons and full moons) but I've never seen her freak out. I get more scratches playing with her than trying to give her pills!