^^ ditto!
or when people dare you to do something they wouldn't do themselves.....

Not to say all people who smoke are this way, but it seems that the majority of them believe that the world is their ashtray. I can't help but get annoyed whenever I have to clean the butts out of the garden or lawn

when my sister acts like a chicken.....

When people smoke in front of me, when adults (or anyone for that matter) curse in front of children, when teenagers (And I'm a teen!) act loud and obnoxious in public places like at the movies, when people say inappropriate comments and make everyone in the room uncomfortable (Seriously, can't you keep your mouth shut till we're out of here?), when people bash other people's religions without having a decent amount of awareness about the religion or belief, when others touch EVERYTHING at another person's house, when people ask "What are your favorite books?" I respond "Narnia, Harry Potter, etc..." and they say, "Wow such a nerd". TRY TO READ A BOOK IT BEFORE YOU CRITISIZE. Rabid Twilight fans sometimes annoy me, I'm really sorry if you're one!! I just hate the series.
When others say reading is for geeks, teenagers who purposely disrespect teachers to seem tough, when videos take to long to download, when parents allow their children to act like brats in public and do not discipline them, when people use improper grammer (I understand mistakes, I make them all the time, but not when they do it purposely, you just sound ignorant and dumb), when some waiters (it's happening less often now) give me children's menus even though I'm 17!! Plenty of things annoy me lol

Great now I sound so grumpy and moody
Trust me I'm not!

Super happy/sappy music. This stuff gets stuck in my head for days on end, I hate it! Example? Happiness Runs is one of them...

What else...Lol speak can be annoying, unless your texting as it saves space.

Noisy neighbors and their dogs.

Guys who have long hair and don't take care of it. If you can keep it clean, keep it. If not, I have some scissors.

I hate it when people think I'm younger than I am.
I hate the fact that I am the shortest person in my family, and my 14 year old sister is taller than me! (I'm 18)
I hate when my brother is constantly negative
I hate vampires, and how everyone is obsessed with them.
I hate it when my fish die for no apparent reason
I hate noisy children in public places
I hate it when my favorite books are made into movies, and half the good stuff is cut out and a bunch of stupid stuff is put in.
I hate how I procrastinate and over-anylze my writing.
I hate it when my supposedly smart character acts like an idiot
I hate obnoxious people on the Internet
I hate it when people are hypersensitive about racism.

I hate when my people make fun of my Converse (One Star) because they arent 'real' converse, they are only one star.

I hate it when people let their kids scream in church and give them a cookie to calm them down when they should take them outside and discipline them.

I'm annoyed when like I know something.. like Narnia, just me and my bff, then later onwards I hear my other classmates chit chatting about it and like showing off they know better! No offense to others but I really am annoyed with this kind of situation.

^ I hate that too

Or for that matter, when someone KNOWS you know alot about that certain thing, and trys to correct you or seem like they know even more than you about it. That irritates me so much.

When you drive into a drive in to order a drink and when it is handed over to you the lid isn't correctly on and it spills in your lap. That annoys me so much.

When my sister wants to argue with everything

There was a bunch of things that used to annoy me on a daily basis when I was at school. Like when the teacher would wipe the board clean but leave a little tiny bit of chalk in the corner. All I could concentrate on was that tiny piece of chalk. Or when I started a new page in my exercise book and got the first word wrong. You can't cross it out, oh no - the page must be ripped out and started again. Even more annoying was if I made a mistake on the last word. Do I start again or do I just deal with the crossing out? That decision used to torment me.

People have mentioned texting - what really annoys me is people listening to their mp3's in one ear while you're trying to have a conversation with them. It's just downright rude! I'm 100% sure I get annoyed by a lot of other things, but let's leave delving into that particular gold mine for a while.

Like when the teacher would wipe the board clean but leave a little tiny bit of chalk in the corner. All I could concentrate on was that tiny piece of chalk.

I'm the same way! I'm still in school so I still have to deal with it.

I hate it when people act like you're weird because you don't act like them. It also annoys me when a date won't stop kissing and they're sitting in the booth on front you... I know there's lots of other things that annoy me but I can't think of them right now.

Hmmm.... when people leave the door to my room open.

When my favorite song stops playing on my zune because it needs to be resynched. Ugh.

When my sister wants to argue with everything

My sister dose that all the time!
I just got back from a week long camping trip, so here are a few;

Being traped in a tent with some one who is really annoying.
The first years (You see it is there first year as a boy scout) who going around yelling "That's what she said." whenever we (The non first years) say something.
Being voted off the swim team because I was to young then watch the guy who replaced me fail and cost us the race.

I would go on but you likely don't want to hear it.