I have had a few situations on public land in Iowa with dangerous gun owners. One threatened me, that was a dumb thing to do. Once a group of Hispanics, from out of state, were shooting pistols right in our direction. I yelled, it made no difference. When they left, I followed them in their fancy decked out car and pickup to the Iowa town a few miles away. I called the local county sheriff and said that I suspected drug smugglers. I was right. Then this year, there was a guy shooting inline blackpwders with his kids. He was shooting straight down the access path and he told me that I should not walk that direction. I was not going to hunt there after all of that target shooting, but I did inform him that target shooting on public hunting land was illegal. He said "They have to catch me first." I said, "You do not understand this is bow season and you have been caught."