Hangers facing the WRONG way.
I said "less common" because while it might tickle the OCD parts of my writer friends, I doubt most loathe it quite as much as I do. Unless you've worked retail. Then you know the white-hot rage that can boil over at the sight of that one hanger facing the wrong way on a rack.
It's not that difficult! Just think question mark.
That's what the hanger should look like before you stick it back on the rack. It's actually more of a pain in the ass for you to shove the hanger in the rack, under the bar, to hook it on backwards, so STOP DOING IT. Not only are you wasting the precious extra ten seconds it takes you to do it that way for every. single. freaking. item of clothing you look at on your shopping trip (you know who you are *glares*) but you're also wasting MY TIME by making me fix it. Oh wait... that's not my job anymore! Mwahahahahahahaha... ha... ha. Sorry. Got carried away there. Straightening racks isn't exactly my job anymore, but hangers facing the wrong way still affect me, and still irritate me.
The salesperson will appreciate it greatly if you simply put the hanger back on the rack properly. You know. The way you found it to start with. Do you walk into a bookstore, proceed to turn all the books you look at so they face backward, and expect not to get a few sideways glances? No, of course not! You put them back where and how you found them. It's not a novel (heh) concept.
My trained eye can spot one of 75 hangers turned the wrong way in seconds. Seconds, I tell you! If I'm not looking to see whether the hangers are all faced one way (because, oh, I don't know, I've misplaced my faith in humanity by assuming no jerks have come by and put them back wrong) I'll go to grab a handful at once if I need to move things around during the course of my job... and you know what happens then? Where are all my retail bitches? You know.
You grab that run of 25 or so garments to move to a runner or different rack and because of that ONE DAMN BACKWARD HANGER holding on for dear life, you either end up nearly toppling the whole fixture or give yourself whiplash as you're yanked back.
Be kind to your salespeople (and OCD and neat freaks everywhere) and put the hanger back the right way. If I see any of you sadistic anarchists in my store turning hangers just to spite me, you better watch out. They'll have to change the term "going postal" to "going retail" because I will cut a mutha--
Oh. I mean... Pay no attention to the crazy lady behind the curtain. Put your hangers back properly. Please and thank you. :-)