*Dressing rooms with the half-door, I am somewhat tall, 5'10", and half the time you can practically see my 'twins' over the stall door.
*When you are in the dressing room, and somebody's child is crawling on the floor, and they end up peeking under the door! Look, this is not Pay-per-view...get your KID!!!
*RUDE salespersons/clerk...IT IS NOT MY FAULT you have to work at a gas station on a Saturday night...MMMKAY?
*When I am at Walmart/grocery store, etc...and the clerk just starts ringing me up, I feel like saying..."WELL HELLO WELCOME TO WALMART, HOW ARE YOU???"
*When I go to whip my car into a parking space and realize that it has a little short ass car in it, like a Bug or something...
*When I was in high school, I used to work at JC Penney, and I used to hate it when people would throw their money at me when my hand was out...I used to PRAY they had change, or if they used a credit card, LOL I would slap it down so hard, you would have thought I was playing spades and I just slapped down the Big Joker!
That's all for now..
***edited to add***
*When a parent has a big half-grown child in a stroller.

That kinda pisses me off personally, LET HIM WALK!!! This big 'man-child' is up in the stroller with his feet dragging on the floor. It's even worse when they carry them! LET HIS ASS WALK, kids don't get enough exercise now anyway!