He risks getting dangerously pruney

I'm going to go check out David Blaine this week while he's floating in his giant goldfish bowl for a week and then holding his breath for nine minutes. flickr thing about it Gothamist link

I'd try something like that myself, but as a rule I don't do anything that requires a catheter, my urethra and I have what you might call an understanding about not shoving things up there.