That's a relief.

Took Buddy to the vet, and it turns out he has a urinary tract infection, which is probably why he's been having so many accidents lately. With any luck, a few weeks worth of pills and he'll be back to his good old continent self. I really did NOT like the idea of caging him when we were out of the house, as his original abusive owners would leave him locked up for days at a time. But we won't have to do that now, so all should be well.