Bev, I knew a guy who used to always hunt old town urban demolition sites. He'd just wait till the workers cut out for the day, and help himself. He said that if anyone ever questioned him, he'd tell them that the "other guy who was here awhile ago, said it was ok". And if the person persisted, by asking who this other person was, he'd say "wearing a hard hat, blue jeans, and drove off in a truck". Because when you think of it, that describes EVERYbody who works at a const. site, right? The worst that would ever happen then, is the objector might say "well I don't know who that was, but I say to scram". So he'd just leave, if so.