Talk:Ken Kaneki/@comment-25742728-20150410020349/@comment-10733658-20150410085821

^^ Actually, that isn't true. Martyrs is a purely fictional story, with absolutely no basis in medical or psychological sciences. You really shouldn't take something from a movie at face value.

Passage of bodily wastes is only voluntary to a certain degree, since we have to learn to control those muscles and are only able to "hold it" for so long. Torture or other extreme situations are more likely to cause loss of control over those functions.

....and seriously, there's plenty of evidence that Ghouls use the restroom. It just isn't a major thing in the series normally. (I mean, otherwise Tsukiyama excusing himself to the restroom would make Hinami go ????? if Ghouls didn't have to go like everyone else.)