I can't stand inexcusable discourtesy. It's...well, inexcusable. There is no reason for it. Like today, for example. Two days ago, my mom broke her ankle in two places. Today we were waiting to be seen by the doctor at the clinic when she had to go to the bathroom. I helped her in there, spotting her as she slowly made her way there on crutches (she couldn't put any weight on it at all). There was only one handicap stall, and it was being used up by this lady who was talking on her cell phone and had a bunch of papers and magazines spread on the floor.
She never flushed the toilet or anything. All she did was jabber in there for several minutes. After she finally hung up, picked up her stuff, and got out I saw that she was not handicapped in the least. She was just using the stall as her own personal phone booth while my mom had to hop into a narrow stall on one foot, turn around, and carefully situate herself without anything to stabilize her apart from the toilet paper holder.
I mean really, I understand it was a doctor's office and most would probably appreciate her taking her phone conversation into the bathroom, but to take up a stall--especially the handicap stall--just to talk on your phone is just plain idiotic. And too, it was an orthopedic clinic. Common sense could have told her that the handicap stall (with its large size and convenient handle bars) would have been in high demand. But no, taking up a bathroom stall just to talk on the phone is SO much more courteous than just standing outside of it so that others can get in.
Also:
~People who don't hold doors when you obviously need help with it and they are perfectly capable of doing so.
~People who leave their shopping carts directly in the way of everybody else at the store when there are at least 5 other good locations to choose from.
~People who blame and complain to other people about things they can't control.
~People who stand directly in everybody's way and can't take a hint.
~People who sit in their cars in the middle of the lanes in a parking lot, making it inaccessible to everyone else
~People who drive the wrong way up one-way parking lot lanes
So, in general, the one thing that--without question--will piss me right off is people who do things that inconvenience others for the sake of their own convenience. Every one of those things I listed are standards that I hold to myself. I do my absolute best to make sure whatever I'm doing does not inconvenience others around me. It's an impulse for me--a habit. I can't stand to not do it. Any time I do otherwise I feel terrible for it. The only time I will even ever think of doing otherwise is if somebody is being particularly rude or thoughtless and I feel the need to get some passive-aggressive justice.