When I was a brand-new F/E on the B-727 , I had this old, senior Captain who told me stories of carrying a 9mm pistol in his flight bag in the early 1960s, when no metal-detectors were in use. He carried it for 2 reasons: to kill hijackers who wanted to go to Cuba and to shoot wildlife out his sliding cockpit window! He even told me he killed a deer at the end of runway 19L at KMCI one night, after shining the taxi light on it!