http://www.cnn.com/2007/TECH/space/02/23/astronaut.plan.ap/index.html
It turns out NASA has detailed, written procedures for dealing with a suicidal or psychotic astronaut in space. The documents, obtained this week by The Associated Press, say the astronaut’s crewmates should bind his wrists and ankles with duct tape, tie him down with a bungee cord and inject him with tranquilizers if necessary.
I wonder if they will “train” for this now. The thing is… if the psycho astronaut knows the procedure, it might make it hard to carry out. Where do they keep those tranquilizers on-board anyways?