A Legacy Airline... but I once flew 2 Springer Show guests back from ORD to their trailers in SMF. They had a physical confrontation on a guppie. One was the wife, the other the pregnant mistress (or so they told the FAs). FAs calmed them down and separated them. All was good until final approach when they were standing up screaming obscenities at each other from several rows apart. We had Sacramento's finest meet the jet. Good times.