Self-Defense - MMA - Double Leg Takedown
Human Weapon video tutorial: The double leg takedown (colloquially simply known as a double leg or even double) involves grabbing the opponent with both arms around the opponent's legs while keeping the chest close to the opponent, and using this position to force the opponent to the ground.

Self-Defense - Karate Punch Blocking "Uchi Uke"
Human Weapon: This video tutorial shows you how to do a Karate Style Punch Block, This Move is called the ' Uchi Uke ' (outside mid-level block)

Self-Defense - Krav Maga - 360 Defense
Human Weapon: This video tutorial shows you how to do the 360 defense technique from Krav Maga. The 360 degree defense is used to defend against attacks delivered to the outside of the body. The defense also serves as the foundation for other techniques and develops peripheral awareness.