My approach with YJs has always been to stay on the tractor or riding mower and get as far away as possible before stopping. Still get stung but not many. You would think they would just go for the machine but no, they go for the human. For maybe 10 or more years I would get stung once or twice every summer or so. No big deal right? But one year I got stung twice while mowing the yard. Stopped, ran into the house, put baking soda on the stings, and then went back out to find the nest hole and got stung two or three more times. Went back into the house, started taking a cold shower, and noticed I had broken out in hives all over my stomach and back. Plus my gums started swelling and lips were getting numb. When my wife saw me she ran for the Epipen she had always kept since she is allergic to bee stings and deer flies. Jabbed it into my thigh, gave me two benadryls, and drove me to the ER which had about 30 people in the waiting room. The triage nurse took one look at me and immediately ushered me to a doctor. They gave me some prednisone and kept me for a few hours and the we drove home. So now I carry an EpiPen with me all the time. Not a fun way to avoid a long ER wait. Haven't seen many YJs in the last 3 or 4 years, but we have had more skunks. So maybe they are doing a good job keeping them away.