Well, I'm glad the old guy got off a shot, but his aim is as off as his judgement. In this case, if the facts are all there, he opened himself up and advertised himself as a victim for the crime. First he gives the perp the phone and then he lets him to use the bathroom. No wonder they returned the next day to continue using grandpa. Sheesh. Grandpa and Grandma should be glad they aren't dead.
We have a similiar problem on the Delaware, Pennsylvania border. Home invasions at night and the victims are older folks. Kicking in the door, breaking slider glass and scaring the people while taking cash and jewelry. Nobody has been hurt yet but it is only a matter of time. The PA State Police told folks to leave the outside lights on at night. The state police cannot cover all the territory. No home owner pulled out a gun yet although on 90 year old man hit the guy with a baseball bat. The 90 year old lost his balance but managed to tag the burgler a couple of times.