Moodiness

Why does my co worker drink got chocolate when it's 80 degrees outside and sets the mug down loudly on her desk ?
Why are these people that I work with so annoying in general ?
If the phone rings one more time I'm going to sling it across my office .
Why do people keep talking to me ?
Why can't I just go home and go to bed ?
I want a whole pint of icecream .
Why is it necessary to be at work when there's nothing to do ?