Karma

I'm all for private justice. However, I'm not so stupid as to commit crimes myself while handing out justice. Because there's this thing called karma. Things have a tendency to come back at us. That's why we have sayings such as "what goes around comes around", and "don't throw stones when in a glass house". Behaving as if  karma is selective and always in our own interest rarely ends well.

By John F. Knott - Knott, John F. (1918) War Cartoons, Dallas, Public Domain, Link