I used one in public:
I'm racing around the boreen back roads (a boreen is a two lane road that's only 8 feet wide, you have to drive into the bushes to pass oncoming traffic) of the Irish countryside in my old sportscar, with one of my Squatching buddies from Vancouver in the passenger seat... pull up to a junction where thankfully the road is much wider. Unfortunately, the Sunday-driver in front of me makes no effort to move to the centre of the the road, he just stops and then puts on his indicator...
I lean out the side window and scream:
"Monster road positioning!"
Sunday driver: "What?"
Then a passer by shouts: "Epic timely indication asshole!"
Sunday driver: "I'll move..." he nudges to the right.
I drive on, wave to the passer by (who didn't even look like he worked out), then explain to my befuddled passenger that "It's an Irish thing".
The Luke