The whole thing reminded me of an episode of The Simpsons:swillden said:
"...Walking to a local N.R.A. meeting, Homer and Marge arrive at the entrance, where Lou and Eddie monitor the metal detector. Moe, Krusty, and Rainier Wolfcastle each pass through, setting off a red light on top. When Kearney walks through without setting it off, Eddie sends him back through, where Lou hands him a pistol. He carries it through, this time setting it off."