While I didn't happen to see the event you are discussing, I have seen instances on Mecum where the bidding was stopped or rolled back. I think some times the communications between the auctioneer and the floor person who is helping the bidder sometimes just goes wrong. I have no way of knowing just what happened here, but it is possible that happened. I do have think that the auctioneer has his mouth going at such a rate that they miss what the floor person is trying to tell them. As far as being insulting to the bidder, that is always a bad idea. Old motor mouth says something that he thinks is funny but at the embarrassment of the bidders. I have seen one or two of the auctioneers that are far more prone to this behavior than the others.