Seems like clicking the gun sometimes does not work at all. As a policy I wanted to shoot thieves, but they would disappear instead of being shot (and return to steal the next day)...
you have to remember their name so you don't let them steal credit or smth
Also, if they (shout), (mutter), or start their sentence with "Gimme," or say "I want food. Now," shoot them. They are probable to steal the food.
