yellow jackets really do go around stinging people because they are pissed off. In september and october or whenever it is that it gets cold, ( and it is time to harvest ganja) they start getting really pissed because they know they are gonna die, so they think what better way to die than to sting the shit out of somebody. together. i got hit by like 10 of those fuckers once. i hated it. don't grow weed near yellow jacket holes or nest or whatever the fuck they live in