Seriously does anyone here not lock up their copper?
What about wire you have installed on a job?
How do you lock up copper feeders pulled in conduit from a gutter to a panel can?
One of my favorite competitors had about $30,000 worth of 750mcm stolen last year right out of the pipe. What they could not pull out they cut the tails off. He suspects his own labor, but it could have been anyone on the job.
I had a shipping container broken into last year too; all it had in it was scrap from the job and some very expensive fiber optic cable. They took it all. Yeah locks keep honest people honest, because crooks just use a torch and cut the bars right off. The real bummer came when the place I rented the container from billed me for repairs.
Selling copper should be no different than a pawn shop, ID should be required. A check or voucher for the money would be good too.