Better a .22 in the hand, than a 9MM at home, when you need it.
Next time you go gun "window shopping", check out one of the Beretta .22 tip up pistols. I think Taurus makes one too.
Baby Berettas: A tale of tip up barrels - Guns.com
Beretta Model 21 22LR Pistol Review & Disassembly - YouTube