Armageddon
NASA's crazed astronaut policy seems to be related to the movie, "Armageddon," with Bruce Willis that came out back in 1998. In that movie, one of the oil drilling crew goes a bit nuts and starts firing a rotary cannon while on the asteroid they are trying to blow up - he gets duct-taped to a bulkhead.
The main issue here is whether the movie makers looked into NASA policy on these matters or whether the NASA guys saw the movie and got the idea.
Regards from Central Oregon,
Don Oliver