you let someone whack you on the head full swing with a skateboard
So, like, a club. A mace. A melee weapon against a semi-auto 5.56 broomstick with enough rounds to kill 30 people in as many seconds (with aiming) before requiring a reload.
Phew. Lucky he was there to be the timely victim; otherwise, who would that guy NOT SHOOT and the skateboard guy NOT HIT? It could’ve been anyone not injured at all from those people.