I was just thinking the other day how many I have seen around and it is not even the end of August yet.
This one stung me today while I was doing at least 15 kph on my bike along Dundas. It never fails, I get stung at least once a year. My hand is swelling up now and the swelling will probably go all the way up to my elbow like last year's sting.
Yellow jackets suck.