While I certainly do not want to bash your mother, I question the wisdom of buying a firearm for someone that may not be able to handle it safely. Look into less lethal options. How about a Surefire M-6 light w/ a 500 lumen bulb? How about a Taser? Specialty Sports here in the Springs sells the "Civilian" Tasers and cartridges. If you must go the gun route, a .22 revolver, like the 9 shot Taurus, would be best. And for those that said pistol grip shotgun, slap yourselves.