"Man, what are you doing with a gun in space?"

[The Wierd It]

Originally Posted by funkychinaman

I suppose the only reason would be if they were stuck on the moon and couldn't return they'd have a quick way to die instead of starving or suffocating. But I'd think a cyanide capsule would be much lighter. Or, they could just open the hatch.

It's been stated that astronauts never carried cyanide pills; blowing the hatch was deemed to be faster and less painful.