2023, store clerk, empty handed skills, robber, glendale, arizona, phone, ground fighting, our gun, transitional space, positional dominance, retention, July, john, daily lessons, USA, armed, robbery, knocks him over, gun to neck, threaten, deadly, threat, ran, behind counter, AR, doorway, store, clerk, pay attention, surprise, grapple, steals gun, yoink, the ground, several minutes, jiu jitsu, magazine, fleeing felon, shoes, chases, rules of stupid, holds him down