Quote Originally Posted by Khedrac View Post
Throughout history the odd person has killed themselves by suffering a burst bladder after "holding it in too long" e.g. at a formal feat when it was very impolite to leave the table to relieve oneself.

Burst kidney? - no chance, it's not a holding vessel, it's a filter
Also, I'm pretty sure that if both kidneys ruptured as depicted in the episode that it would be fatal within minutes from internal bleeding. If you miraculously stopped that, all the toxins that were being processed are, instead of sent to the bladder to be disposed of, now spread across your abdominal cavity probably causing sepsis.

The lack of functional kidneys would probably be the least of your concerns if they somehow exploded.