Have Gun, Will Sell Sanford and Son : Season 2 Episode 7

One evening, Lamont and his friend Rollo go out. When they return they interrupt a robber trying to flee from the scene. Later they discover the crook dropped his gun and in an attempt to get some quick cash, decide to pawn it. However, once at the pawn shop, the broker mistakes Fred wanting money for the gun for a stickup.