I have been threw 3 divorces. I can not stop laughing!!! that was Priceless. also very rarely do i feel Under-gunned with a .22lr. Beretta 22lr is what the Israilies used to hunt down and kill all of the 72 Olympic criminals. they stopped using .22's when people they were only try to wing and wound kept dying.
the first thing to do is to recognize and avoid situations in which you or your loved ones might face serious injury or death. Use of any weapon is a last resort. Any caliber firearm is better than none when it is needed. If your .22 Short pistol is reliable and accurate at 15 feet using match ammunition--OK. I say "expensive" Match ammo such as the European brands made for UIT rapid fire pistols or the new CCI Short Target Precision 29 grain load. Of course you need to be sure it works in your pistol. I am concerned about misfire with rimfire ammo, and the need to chamber a fresh round, for that reason I prefer a .22 Short or LR revolver. One needs to practice enough with any small.22 to put all the shots in an 6" circle @ 15 feet which is as close as you should let any threat get to you, and they will be moving. There are advantages and disadvantages with any caliber firearm but firearm reliability and shooter ability to place their shots under stress is the key.