Always know the flaw in the drill, Rory Miller (Meditations on Violence) admonishes:
In the end, a martial artist is training to kill, cripple or maim another human being. In any drill where the students are not regularly taken to the hospital, there is a safety flaw built in.Judo starts from the very beginning with a very specific follow-through to the hip and shoulder throws. Students are taught that this follow-through increases control and sets up the uke for a quick arm-bar or osaekomi. The simple fact is that the four traditional follow-throughs either shattered the shoulder, snapped the neck, broke the tailbone or knocked the wind out. The judo follow through is taught as control, but was introduced for safety.