I'll follow BatVink's example, except start out with the positive.
What I Enjoy
* Ubuntu's fancy squishy window visual effects.
* Learning new things
* Writing a reasonably complicated function/method and getting it right the first time
* Finding old things I've written/made/coded
What I Dislike
* People who are unreliable, or at least don't attempt to put any sort of effort into projects/endeavors they either start with you or agree to help you with.
* People in college who feel they need to revive immature social behaviors we were supposed to have ridden ourselves of in high school.
* People who claim they have no free time (for the abovementioned things). I used to be bad about this, until I realized just how much time I had and how much time I presently do not have. Interestingly enough, I'm getting more done per day now that I have less time.
* My Logitech MX518 isn't fully supported by USB Overdrive, and the developer stopped answering people's emails.
Quote: "- Repetition of the wrongggggggg letter in a worddddddd to display emphasisssssss. Makes for particularly grating reading."
Thisssssssssssssssssssss.

Seriously though, I
greatly dislike getting texts/emails like that.
Quote: " Phaelax:
project managers"
Especially when they barely know what you're talking about when you give them a status update. Funny quote from my slightly-less-than-competent project manager: "So, it looks like I'm gonna write the USB driver for the device.

"
Reaction of the three of us on his team: o_0
Good luck with that . . .
Quote: "Fanboys & Haters - why do people have to project their opinions onto you from a point of superiority? I don't care if you think the product you've got is better than the product I've got, because it was my choice to get my product and I made an informed decision, so it's not yours to make. I like Microsft, Apple, Nintendo and Sony. So, it gets sodding annoying dealing with all of their fanboys. On the other hand, you have the haters, in some circles, it's awkward for you to say, "oh I like what apple did there!"
The most annoying hater I found in the real world was when I was at a stall and a Twilight hater was talking to us about Twilight, as a fellow person who dislikes Twilight, there was some common ground so a conversation was sustainable, then a girl appeared and she said, 'Oh you're talking about Twilight, I like those books' and she was interested in talking to us about what we thought about them and it could have been a civilised and intellectual discussion, but instead, the other guy just projected his views with no mercy. Bloody rude, I felt, sure I don't like the books, but be reasonable. Funny thing was, the same guy was talking about how he wanted to send his Final Fantasy fan-fiction to Square to see it published...if I weren't so polite, I would have burst out laughing."
THIS! How could you just lay into somebody like that?
I enjoy a good product-bashing with friend where it's understood that we all have similar views about something. But, I've had issues with the Apple hater thing with my friends frequently. It's rather rude, considering that I've explained my rationale for owning a mac several times.
Here's a typical example of me lanning with these guys:
Friend1: Michael, join our Warcraft 3 game.
Me: I can't see it. Is everyone else in?
Friend1: Yes.
Friend2: It won't work because you're using a mac.
Me: I'm running Windows 7 right now.
Friend2: But it's still a mac.
Me (after fiddling around): No, it's because Windows 7 didn't prompt me to add an exception for WC3 to Windows Firewall.
Friend2: It's still a mac. You're probably going to lose because it's a mac.
He's just joking, but it's irritating as hell going through this routine every time.