Never fought over an empty. Though when I showed up at General Mills in Albuquerque to pick up a loaded/drop my empty one of the local Werner drivers asked where I got it. I did a drop/hook at the Lost Loonies WMDC. He told me I got lucky that Werner empties in ABQ were scarce and GM was being picky about letting guys in to pick up loaded trailers without dropping an empty. I guess the time the security guard got yelled at for letting me bobtail in for a load was sort of a fight over a trailer...or lack thereof lol!