I had that happen to me and a friend when I was about 14. Me and my buddy were crow hunting and casually wandered onto some private property next to a piece we were allowed to be on. A guy came flying up to us in a truck and jumped out waiving a large caliber, nickel plated revolver at us. He was screaming that we were attempting to shoot "his" ducks which were actually just wild ducks that would roost along a stream that passed through his property.
We could barely talk and stammered that we were sorry and told him it would never happen again. We wouldn't even think about telling our parents or calling the police after it happened. I could already anticipate my father's response which would have been "Good, serves you right !"
I ran into my friend several years ago at a wedding and it was the first topic of conversation.