i see a lot of old fairgrounds around here but i am hesitant to go in and use my detector on the nice grass,i see a lot of posts saying old park,fairgrounds ect and i was wondering if you get any objections from people. i dont dig big holes i just cut a hinged patch about 2 inches square and then pluck the coin out,but i know i have seen what some poeple do and it makes me wonder if i should take a chance and try these places?