That’s a fairly dangerous thing to do. My first reaction would be to break your nose. Seriously. But just on principle, of course.
Meh. We judge people, we just do. I don’t see what’s wrong with it. It would be weird if we thought all behaviour was equal: it isn’t. Just being marginally nice to everyone who isn’t Hitler is pretty much where the bar is, if you ask me. They needn’t know your inner-judge.* I don’t judge judging 
Judge away!
*Because really we all know that everyone else eats wrong, walks wrong, breathes wrong, their house is wrong, their clothes are wrong, their spelling is wrong, their opinions are wrong. My SO even brushes his teeth wrong. And that’s without even starting on parenting, declawing cats and circumcision. 