http://www.tsemrinpoche.com
NEVER-BEFORE-SEEN mind-blowing footage of His Eminence Tsem Rinpoche debating with his students. Watch Rinpoche debate with such passion, clarity in logic, sharpness and quickness, and ultimately, it is Rinpoche's compassion in helping the students realize their own shortcomings and overcome it.
This is real guru teaching real spirituality.
The "aggressiveness", the hand slapping is to throw the debater off balance, to train them to focus their minds and regardless of the distractions in front of you, be able to answer the question in an accurate and convincing manner. The hand slapping is also to provoke the person answering, for them to become aware of their ego which manifests during the debate (in the form of, for example, the need to win, as opposed to learning). This ego impedes their ability to answer clearly, thus the exercise also trains them to be aware of this and to subdue this.
http://www.tsemrinpoche.com