Top three reasons?
There are that many water bowls. All over the house. Not to mention how many massive puddles (and water flung 3/4 of the way up walls, thank you very much) I had to try to clean up for the first eight hours this little monster came down off the vet's laughing gas.
I asked the vet tech who called the next morning to check on him what the hell they give cats nowadays to put them under for surgery. Cause this is the second time I've had cats who are normally mortally offended by water decide they were mercats after a little happy juice. She laughed.
Corvid had some bad teeth. They're gone. He's fine now. I didn't even ruffle his fur after the shower he gave at the end of this video.