This keeps happening to me. I make a husky bet into a multi-way pot with several players left. Along the way someone folds face up showing a good hand as if to say "I'm making a great laydown", while there are still players left to act. Over and over this has cost me money.

Most recently I was in the BB with KK and raised when it came around. Guy along the way folds AJ and smiles at me. Next guy, who's been pretty wild and willing to call most pre-flop raises says "oh--well these are no good" and folds AJ face up. Dealer says not a word, so I politely afterwards ask that players PLEASE not show their cards like that and this guy gets defensive, saying he didn't do anything wrong. At that point the dealer finally speaks up and helps explain why that was really bad.

In an earlier example, I had the nuts on the river and made a husky bet. Next guy to act has the 2nd nuts, calls, and flips his cards over. Folks yell at him saying there are still 3 more people to act and he says "I know--I'm just trying to save them money". I'm quietly fuming as one of the next players folds his cards face up showing the 3rd nut saying "I was going to call until you did that". And again, the guy who showed the cards is unrepentant.

Other than lacing up Al Capone's steel toed boots, how do we beat into people the idea that their misplay at the table can seriously impact other people? I want folks to have to post a 50BB bond when they sit down that they have to forfit if they pull some donkey move like this.