The friendliest fire

from here and here (image source)

If shooting someone on your own side is considered friendly fire, shooting yourself should be the friendliest fire. 

Make sure no one rains on your parade

found on Reddit

This is interesting, but it seems like it makes it difficult to see. I kind of wonder if face shields (like the ones people are wearing due to covid-19) would help protect against pepper spraying. At the very least it seems like it should stop it from getting sprayed right on the surface of your face (the way pepper spray cop did years ago during the Occupy movement).