I think what Raphael is saying in his short and sweet comment is that this is a pretty standard piece of angst/anger and to be honest if you looked through the angst posts on this site you'd find at least 10 just like it.
If you are going to write angst poetry can I suggest that you try and break from the normal things that are posted everyday and make it a bit more personal to yourself, actually show some feeling other than just a random rant.
Why you pissed?
What did you feel before they pissed you off?
That kind of thing, on the other side it does kind of read pretty well. First line though think you missed an "it" of the end of the line?
Other than that for the "anger" that you were trying to portray you did very well, I'd just like to see a touch more personality in pieces liek these.