First, thanks to all who commented and emailed me about Bubba. We have high hopes that he will be fine, but with his situation, you never really know. He gets bladder stones and has had two surgeries because of them, and he's been blocked a few times which required emergency visits to the vet. The last surgery was an emergency because stones were stuck in the urethra which caused a major blockage. Doc was able to remove them but there was so much damage and necrotic tissue (dead tissue) that the opening never closed all the way. This hasn't been a big problem until recently when he started leaking from that opening. He really has no control over it. However, with all that said, he's a very lucky dog. Most dogs with that severe of a blockage, and that much damage to the urethra, plus so much necrotic tissue, don't survive.
For the past few years he's been on prescription food which should keep the stones at a minimum but we still see small stones occasionally.