I heard about a nasty stinging invasive insect. I originally searched for "murder wasp" and found an exotic insect that was frightening but mostly harmless and then started reading up on "murder hornets". A nearby acquaintance to where I live said she had seen two murder hornets so far.
Among other things (e.g. a sting that can easily pass through a beekeeping suit), I've heard stings described in language I had only previously heard mentioned with respect to vipers. One person who was stung said it was the most painful insect sting he'd ever experienced and felt like a red-hot tack pushed into his skin. It compared to a snakebite described as being two white-hot needles stabbing the victim's skin. If several murder hornets gang up on someone, the projection is that the venom injected could be comparable to snakebite.
Is the best advice to slowly back away? I have heard, but not tested, that hairspray will lock a bee's wings. Will hairspray have desirable effects, or am I asking for trouble by doing anything but get away?