Technically speaking the scrap yard got robbed. Once you put scrap inside a container that scrap is no longer yours and belongs to the scrap yard. Anything inside the container is property of whoever owns the scrap container. I know this because I went to an auction once and was going to bid on a container of scrap 304 stainless. Turns out it was already loaded in scrap yard I was doing contracting for at the time container. I called the head of sales at the yard and he sent over a salesman to inform the auction company that the container isn't going to be auctioned off and won't be included in the sale or the cops would be called. Long story short all the scrappers went home empty handed and the yard immediately came over and picked up the container so the bank could get paid. Ask your yard if they have covers for there containers wether its a lugger or 20 yarder or bigger. If they don't you might want to spend some money and make a cover that a towmotor can lift on and off. Just a thought and sorry you got robbed