The little over under pockets guns do have a purpose. My father has a 22Mag derringer and remember it well when it scared off the guy trying to steal the rent money we had just got from the duplex in down town WPB. He shouldn't have brought a knife.
Just shot it last year fo rthe first time in years. Little bastard hurt. It was better with the holster for it. The range guy freaked out because it was still the kind that when you pulled the gun it looked like a wallet and your just put your finger threw the holster to fire