A wall game occurs when all tiles have been exhausted and no one has declared mah jongg. There are several theories as to why a wall game might occur. "Dogging" to early by beginner players and or "Dogging" at the appropriate time during a game can attribute to a wall game. Experienced players might experience more wall games by virtue of very defensive play.
Stopping the Charleston after the first Charleston moves is permitted and does not require another players' permission to do so nor does that person need to give a reason as to why they make their decision.
