I knew of disruptive tactics, but didn't know of the OODA loop until BC1 brought it up earlier at USA Carry (I believe he teaches the OODA loop in his classes).
How do I fit in the OODA loop into my defensive strategy? A few examples:
1. Throw away wallet.
Wallet filled with some money, some cards, stuff that I can easily cancel and replace, or don't have any worry about losing. I will throw that wallet past the threat on his weapon side (so he turns his weapon away from me if he goes for the wallet, also so he can't use his weapon hand to grab the wallet out of the air). This will break his OODA loop long enough for me to run or draw, hopefully.
2. Look beyond the threat with anxiety.
Get the threat to feel he is being approached from behind. This will hopefully give you the time to draw or run.
Other aspects go into getting the most out of disrupting the threat. Such as hand placement: if you put your hands up, keep them low, not way above your head, so you can get to your weapon faster. Also, if your hands are forced behind your head, keep your weapon hand on the outside, for the same reason.
Disrupting the OODA loop only gives you a second, maybe 2. Make those seconds worth while.