I gasped when I saw some neighborhood kids hitting balls off the green with some old oversized irons. They ran when they saw me but I knew them, as they were former students from the school I used to teach. I went over to their backyard and calmly told them that the green was only for putters not irons. I directed them to a nearby field where they could play without destroying the course. They were happy to learn about the course and probably relieved I wasn't scolding them. Some people just have no clue. And yes we've had people fishing, jogging, skate boarding, and even [cringe] riding ATV's and mo-peds on the cartpaths and fairways.