Players Outcome Player A declares mah jongg in error Player A stops playing. Player B throws in their hand Player B stops playing. Game proceeds with Player C and D Player C has exposures showing they need a tile to
If a player picks a tile from the wall, declares mah jongg, and starts to expose his tiles only to find out he did not have mah jongg, their hand would be considered dead.
When a player pushes out the wrong wall during play and tiles have been picked, all hands are thrown in, and a new game is started.