Byciclists are the reason why bike spray was invented, some people started calling it "bear spray" & use it for bear protection when in the woods, I prefer the lead sprayer against bears though,
Bike spray is very effective on arrogant ahole bike riders, they get completey off the road... usually crawling on all fours with a bunch of flailing & wailing
works good on tailgaiting motorists too, couple squirts out the window is all that is needed, heater blows it right in their face for precision deployment