There nothing quite as cheerful as finding a mouse floating face down in the dog's water bowl first thing in the morning. Perhaps one of the cats left it there as a gift for the dog. Perhaps the mouse just couldn't handle the stress. I didn't check to see if there was a little mouse toaster in the bottom of the bowl. I also didn't see any little slits on the mouse's writs. It could have been foul play, but I didn't see any cement on the little paws.