I have had to ask 4wheelers not to ride on my farm and the neighbor sometimes lets a friend hunt on him and who drifts over my line but today I showed up to work on my place (I don"t live there) and I find two guys with metal detectors who had heard there was a school house from the early 1900s that used to be on my farm. My house was built in 1896 and "someone" told them I didn"t mind them being on the old school because it is just off the road etc. Well at first my inclination was that I didn"t care but I thought about it I decided I had no contol over what they found and it might be valuable. I finally said that if they found something I kept it if I wanted it. That was totally unacceptable to them and they left. Now I need to get my fences better. What would you do?