I understood where you were directing your tactics and think it's certainly prudent for the majority of people who'd be approached. Distance directly equates to safety for most.Ha! Well, I would dare NOT to give you self-defense advice, eh? :grin LOL!
Personally, I'm not letting the BG get close enough to me to use a Y-hand response. Or at least I'll TRY to not let him get that close. I'm not going to RUN around the car, but I'm going to use it to my advantage as a barrier if possible.
My "advice" was directed more to the "average" person, not a "Brownie-person."
I'm probably more immune to the approach, working the inner cities for decades and having been approached by panhandlers, bums, druggies, and hookers etc more in a month [ it was a daily occurance in the minority communities I worked for a few years ]. Surprisingly enough, never in the projects though, just on the streets.
They played their game, while I was playing mine, and the less attention I drew while on foot running surveillance the better. I like the gas nozzle as a bludgeon if not turned on yet, and the idea of hosing them down at close range. In either case, a perp has to be close enough, those pumps don't spray but a few feet, one should keep that in mind when discussing that option.