Martial arts icon and coach to former UFC bantamweight champion Ronda Rousey, Gene LeBell performed a demonstration on a student in 2011. However, the demonstration had different results than initially expected.
After putting the student in a choke hold, Gene Lebell brought the man to unconsciousness. With the student limp on the floor, Lebell pours water on his demonstrator’s pants, giving the impression of the student having had an accident.
The demonstration can be seen in the video below.