i'm always riveted by ploppy moves. Here are the top three for this weekend I observed at, of course, a 126CSM... with 6 players.

1 Calls for a hit on his 16 V 6. (Twice in two rounds!)
2 55 V 6 and he fails to double. (Scores an ace!)

and the award for King Plop for the weekend goes to...

3 Stands on A5 V 10. LOL WELL PLAYED, PLOPS!