Or one family. I can't find it at the moment but there was a discussion of this in another thread a while back about a range that posted a "Do Not Pick Up Brass" rule after a guy backed up his truck to the firing line, handed out 5-gallon buckets to 4 or 5 kids, and then the entire family fanned out to fill up their buckets. If it was shiny and centerfire, they picked it up. Apparently, they drove off with hundreds of pounds of brass. Since recycling that stuff is a necessary revenue stream for many ranges, the incident was taken quite seriously.Like you said, it just takes one...