Bob was found down again. Damn it. This time he did eventually manage to get up with a lot of pressure from Joseph. My daughter saw him struggling and came to get me, and by the time I got out there he was up. Looks like he'd been down and trying for a while though. I'm sad. I don't know what else to do. I did take Joseph out, so nobody can bother Bob now, but he's not going to be happy all alone.