Addition to things that have been mentioned:

-People who don't move when the light turns green, but peels out when it's turning red and you're stuck.
-It's cold outside and you touch the door knob....ZZZZZZZZ
-People that don't know how to park
-People that give door dings should be shot
-People who don't wipe their sweat off the machine after they're done
-People who smoke and flick their ash on my car
-Having to break a big bill because I forgot change outside
-Having so many pennies
-When you're sleeping in on a sat morning and the telemarketers call
-The list can go on and on....I'm just mad at the world....