I read somewhere that if you carry a bic lighter in your pocket and are filling your tank with gasoline and somebody attempts to strong arm you,all that you need to do is squirt about 10 cents worth of gas on the perp and offer to light it for them,they will go away very fast.I cannot say it will work but that is what I read.YMMV.tom.
I must add that I in no way suggest that you use this tactic.It is for refference only.tom.