Just because you are unique, doesn't mean you are useful. See the left-handed fish knife or the white-coloured pencil for details.
But anyway, I do know a few people that have this. It gets very annoying when planning events, especially when two or three have to have something done "their way". It's like cooking, where one won't eat meat, another will only eat kosher food, and the third insists that you have to go to the club that does 3-for-2 deals on beer.