to an elderly man's home where there is evidence of an attempted break in that was thwarted by the old guy who chased the thug off with a war trophy:
"You've had that carbine since you got back from Korea? Looks to me like the ammo is pretty corroded. Let me get back to you."
15 minutes later at Tim's Gun Shop: "Timmy, you got about fifteen rounds of loose .30 carbine kicking around? Yeah, it's for a good cause...Thanks, pal. I owe you one. I gotta go and finish taking a statement on an attempted break in."