I just heard from a close friend that one of their cats died tonight. It was very sudden, don't know if it was a heart attack or aneurysm or what. They rushed him to the vet after he got violently ill today, our vet also, who couldn't do anything for him, and we trust our vet completely. He was a fairly young cat. Very sweet and cuddly. I am just so crushed. We catsat for him and their other cat many times while our friends would go out of town. I just can't believe it. I mean, I've been through many pet deaths, but this one was so sudden and unexpected, whereas all the others were foreseen within a couple or few days, during which we could offer the comfort of home, morphine, etc. This is just such a sad end to a very bad day.