"Hate" might be a bit too harsh, but there are people in the world that we all dislike and find aggravating. I don't care how nice you are, how nice others think you are, or how nice you actually are. Chances are that no matter how saintly you are there is a type of person listed below that really gets your blood boiling.

People who write checks to pay for stuff at the store in the year 2008. Getting stuck in line behind someone paying with a check is annoying. It takes too much of the cashier's time and my time. Balancing your checkbook before tearing it out or moving along is grounds for me wishing not so nice things upon you. Please go get a debit or credit card ASAP.
Parking space stalkers. I don't like being followed to my car just because someone is too lazy to park 10 spaces further away. By time you impatiently wait for me to back out you could have already been inside the building.
Waiters who take 10 minutes to read the daily specials. I've been told that I have the palate of a 7-year-old, so I am not the person who is going to order some odd concoction. It shouldn't take 3 full minutes to describe the chicken. The worst part is listening to the fluffy descriptions about the carefully selected wine pairings from someone who you know doesn't really know what he is talking about.
Concertgoers who sing along too loudly. Whether you know the lyrics or not is a non issue. Whether you sound decent or not is also a non issue. I paid money to hear Sigur Rós, not some douchebag who is scream-singing along to a language he doesn't even know. Don't even try to pretend that you speak Icelandic.
Telemarketers. This one had to be on the list. I'm sorry if your career consists of getting hung up on a thousand times a day. Your job sucks so bad that other jobs were created to block you from doing your job. Don't waste my time trying to sell me something over the phone. I have never purchased something unsolicited over the phone and that will never change. And don't give me a generic American name when we both know it isn't your real name. I could care less what your name is, so just say the truth. Below is a video of a prank pulled on a telemarketer.
Slow walkers. I don't know about you, buy usually when I am walking somewhere it is because I'm trying to get somewhere. I'm all for taking leisurely walks but not in the middle of a crowded sidewalk in Chicago or in the mall. Go find yourself a park. And make sure your slow feet stay out of the bicycle lanes.
The driver with the blinker on. When I get stuck behind a car with the blinker left on, it drives me nuts. I have zero tolerance for this. It's practically all I can focus on, which isn't good for anybody. How do you not see the arrow blinking or hear it clicking? I can't hold up a sign or yell out my window. That could get me assaulted. I have no choice but to wait for that idiot to realize it is still on and turn it off.
Airplane passengers with stinky food. When you are on an airplane you are already uncomfortably close to a bunch of strangers. Why would you bring on some horrendously smelly food when in such close quarters with limited air flow? Ignorant.
I'm sure there are plenty more people that we all could do without. I could probably write about this for an entire day, but alas, I have work to do! Leave a comment about the type of person that drives you crazy. You can do it anonymously so you don't have to ruin your "such a nice person" reputation.


Yes to the parking space stalkers and the driver with the blinker on!!!!
Hi Beth - the telemarketers come out at top of my list, closely followed by those idiots with the blinkers.
I work in an inbound call center doing customer care. I'll remain mum on the telemarketer thing, since I have nothing good to say. I can say I have millions of pet peeves I never had before this job. High on my list is people that tell you 93 pieces of information, i.e. names, numbers, the problem, their life story, in one breath at the beginning of the call. They seem to think I can get all that information as fast as you can say it. I'm a jerk and make them tell me even the stuff I got one more time as I ask the questions, cause when you call me for help, I feel you should let me take the lead.