"Oi! (Insert name here)" get eye contact "Don't do that." Don't do what?" Laugh when someone stutters, you get how fucked up that is, are you 12 years old?" If they tell you to relax tell them to stop grabbing at low hanging fruit and treats human beings with basic dignity ... It's a habit, but that's how it plays out a lot. When I was 14 I threw a tennis racket 15 ft and cracked a kids head who laughed at me. Small village, most people got the memo, but going through life I refuse to let it slide without asserting myself and making sure I don't normalise anything that can ruin my environment.