Here's my short list:
People who wear those little hands-free ear phones and then walk around everywhere yacking to themselves in public and then speaking LOUDER because the mic of the phone is above their cheek bone. Yes, sir, you are so very important with your little ear phone sticking off your head everywhere you go.
People who can't learn grammar and spell properly on the Internet. "Sup dude u 8 yet im strvng". Or ten mile long posts with no paragraphs or punctuation. I need not give an example
(Foreingers who don't speak good English can be excluded.)
People who think they are cool.
People who come to YOUR store to get parts/service, and then proceed to tell you how much they will pay, how long it will take you, what you need to fix it; and end it by saying they can fix it themselves, but don't have time.
People with no common curtesy (is that a dieing personal trait in America?). I HATE arrogant people, prideful people, and know-it-alls.
And of course I have to end this with a driving one: I hate when people ride on my **** when I'm already going 10+ over, and likewise hate getting stuck behind the ones going 10+ under for no reason at all when the road is quite open.
I hate it when
I am the one in a hurry, and spend my time flying up the road and passing a bunch of people, just to get hit with a light and then get stuck behind a truck and see all the people I passed going past
me. What a waste.