Little Sucker
The closest thing to an insult I’ve personally experienced on a Canadian roadway came two blocks from our house. That particular street, already skinny, lacks the room for cars to pass each other when parked cars line each side (which they normally do). I was slowly, carefully, driving down that road when the driver of one of the cars that looked parked screamed, “You’re welcome!” at me before turning into the open road behind me and speeding away.