Every time Barney misfired his gun, he received another bullet! How many?
One bullet: Andy shot Barney's bullet into the ceiling when Gentleman Jim tried to escape
Two bullets: Barney's bullet was shot into the floor after Floyd asked if they would be issued sidearms for Founders Day.
Three bullets: Barney shot a hole in his pants at the end of "If I had a Quarter Million".
Bullet four: Barney shot the squad car tire after chasing the farmers out of Mayberry that were selling produce on the side of the road.
3 ending up in the courthouse floor
1 in the courthouse ceiling
2 in the air
1 in the squad car tire
1 somewhere's else??
Didn't Barney shoot one on the Taylor porch, the morning Trey Bowden spent the night and was admiring Barney's "heater" "blue steel baby" etc.
I remember one bullet misfired in "Barney Gets His Man" in season 1. That was in an old barn when Brooke was sneaking up on him. I have a feeling there were quite a few misfired.
Thelma Lou was very lucky in this episode when she surprised Barney and he drew his gun on her. This was one time he had some control on that itchy trigger finger!