Wasp and hornet spray is rumored to be a cheaper alternative to bear spray, and it doesn’t arouse suspicion like bear spray does.
In 1973, when I was an AF captain assigned to Hill AFB, UT, the Ogden Air Logistic Center Commander, my boss and I were given a guided tour of Tooele Army Depot. At that time Tooele held much of the US stockpile of nerve gas. The person giving us the tour told us that Black Flag insect spray had the same ingredients as nerve gas, only in a very greatly dilute form. So, if you spray enough of the Black Flag insect spray on the perp you may put out his lights permanently, not that I would feel too bad about that.