During the robbery of the bank, the manager retrieved his shotgun and fired it through a window and into Chuckles's back, killing him. He then proceeded to casually fire off several shotgun blasts at The Joker's thugs. Grumpy asked Bozo if the manager had run out of ammo, but was tricked into believing so. The manager discharged his shotgun into Grumpy's shoulder, then discovered he was out of shells and the Joker shot him in the shoulder.
The Joker later kept this shotgun for himself and used it frequently until his capture by Gotham's SWAT.