I often wonder what the robber would do if he tried to rob me as i have no cash or any credit cards on me.
In any instance, having a gun pointed at you gives you very few options.
In the ring fighting in competition in a marshal art distraction is a key component but would it work in this situation? Would the guy be distracted enough if a person fumbles the wallet and drops it?
In the 80s Idid a body guard school, was shown and practised dis arming manuvers, the commando type person could do this 9 out of 10 times on any one of us in that class.
After I was shot, I decided that the next guy pulls a gun on me will have my 350 lb body flung at him, maybe it will distract him enough...