From Knuckledraggin My Life Away:
"Man, those were fun – load it up with 2 caps, then sneak up on my uncle
and fire it at the back of his head as hard as I could and then run like
hell to delay the ass-whipping that was sure to come.
"Good times, man. Good times."
I used to take a roll of caps and hit it with a brick on the concrete sidewalk. BOOM! But then all my caps were gone. :(