Boris would like to thank teh innernets for teh love. After a night of flat-out sleeping on the garage floor, looking dead, at 6 a.m. there was crunching of kibble in the kitchen. Teh Kitteh Lives! He is not back to his old self yet, but he's purring louder and eating, and using the litterbox, and all of this is looking very promising.
Kitteh is feeling better, thank you, and has selected Science Diet k/d as his nom of choice. I thought Royal Canin was in the lead earlier, but nope, Science Diet was greeted with more enthusiasm. Fortunately, there is no harm in putting the other old man on the same food, and that makes life easier, if not cheaper. Sigh.
Anyway, he, and I, thank everyone for their prayers and good thoughts - he's improving.