A .380 will do the job, but it ain't a .40 cal. It is a backup weapon by police. Anything will do the job with the right shot placement but if hit in the torso with a .380 a bad guy will fire back. Now hit with a .357, .40 or .45 no they stay down. Grandpa kept the gunmen at bay, yes he made tactical errors, but they did not kill a bunch of people either. They made a mad dash for the door didn't they. They no longer wished to play. Good job grandpa, but get some more training and shooting practice. He was just going out to the internet cafe, he wasn't the one confronted . Me arm the good guys then the bad guy can take a second look.

By the way, in New York state, you lose your handgun license or you passed away, the sheriff comes in and takes your handguns because they are notified and handguns are registered in this state.