I had a strange and pleasant experience at my local Bi-Lo tonight. I was in the express lane, the only lane open, when the supermarket dude came over and told me he was opening another lane and to come on over. So I turned my trolley around but in the meantime the guy behind me raced over and got there first.
So the supermarket dude told him that I had been waiting longer and to let me in first. Woohoo! The pushy guy apologised and walked off while I thanked the supermarket dude profusely.