If there is a crosswalk fifteen feet away, USE IT. Don't just meander out into the road like a dipshit.
If flakes of primer are being shaken off the driver's-side door of your '88 Cutlass Ciera, your stereo is too goddamn loud.
Nobody has ever, in the history of civilization, gotten his wick wet by shouting "Hey! Baby! Girl! C'mere!" at a stranger from across the street. Unless the stranger is a professional. Or unless you're at Burning Man, maybe. But in Reality Camp, save your fucking breath.
If someone is smoking a cigarette near you, and you are annoyed by it, grow some balls and actually ask the smoker to put it out. Politely, please. Coughing pointedly and glaring is a cheap copout, and will likely inspire that evil, evil toxic polluter to blow smoke in your face.
I'm sure I can think of more, gimme a minute.
Won't somebody please think of the children?!