What would be a FABULOUS determent is a dog...a nice big German Shepherd or a big ole Rottweiler. TWO dogs, buddies, would be EVEN better.
LOL. Those dogs would start snarling AS SOON as one of those jerks walked into the store. Dogs can SMELL "bad news."
The guy should REALLY close a little earlier. No one GOOD is out on the prowl at that hour.
Why would the clerk have to buy another gun? If he’s like many of us, can never have too many guns or enough ammunition. He’ll just pull another one out of his safe until they return the one he shot the bad guy with.