i believe the line between a wrestler being dirty and tough is far from thin. a wrestler knows when hes being dirty or just tough, theres no thinking should i of done that, was that right to do? as long as what the wrestler is doing is legal and looking for better position for the win then they are definitely not dirty. 15 takedowns in the first period is not dirty, neither is trying to squeeze your opponents head. have you ever tried to get out of a headlock when your about to pass out? its near impossible.