2) It is not easy to knock someone out, even when done by ambush. Out of three people this dude sucker punched, only one (the one he hit from behind) was taken completely out of the fight. Even with multiple strikes on a woman much smaller than him, the attacker could not KO her. Have the ability to stay conscious and mobile even when ambushed. Getting hit is not a guarantee you will be out of the fight.

3) Going to a weapon is not always possible. The only person who could have even had a slight chance of bringing a weapon into play to defend themselves was the mom and even that is questionable because note how close she was to the action by the time she could see what was happening. The attacker was one or two good steps from reaching her even if she had paused once she was in view. Take a look at how quickly he did move towards her and how fast he covered the ground to hit her in the back of the head. Stacking all your options into only a weapon solution may leave you in a bad place.

4) Note the range the attacker strikes from – swinging arm punches with almost a fully extended arm. This is typical of street striking attacks. Few people understand how to fight in an entanglement and prefer to fight where they are comfortable. Note how the victims stayed in the perfect range for him to continue his assault with maximum effectiveness. Also note how moving away did no good. It is always easier for an attacker to move forward than a defender to move backwards. Going inside, controlling the limbs, and then controlling the position negates the attackers strikes and it is easier to utilize leverage for the smaller person. Ignore the entangled fight at your peril.