re: Breakdowns in space...
I hope they will never take guns to space! A puncture in the hull, and all the air leaks out!
NASA is thinking about how to deal with breakdowns in space.
During a Salyut 7 long mission (211 days), Lebedev and Berezovoy would not talk to each other for a long time. Lebedew wrote about this.
Vasyutin provoked the interruption of the mission (and indirectly the demise of Salyut 7)...because of an "End of the world" syndrome....never could figure what that was!