1. People who use the self-checkout lane that have absolutely no clue how to use it.
2. Walmart for having the gumption to think that their customers would know how to use the self-checkout lane... That was the only time I literally thought I might commit an act of aggravated assault on a corporation. If the stupid Walmart smiley face were a real person...
3. Jerks who think the carpool lane is the fast lane. If I am going more than 10 mph over the speed limit in the carpool lane, than I'm not going to speed up just because you are close enough to smell my son's poopy diaper. We can all agree that it is extremely annoying when a self-righteous mother is going 55 mph in the carpool lane; however, a rational person shouldn't expect that the carpool lane should always be the fastest lane. Get in the fast lane if you want to go 25 over.
4. Lady Gaga