You know it's a bad day when 2 hours after the start of the shift you get into a shouting argument with a hard headed hot-tempred techinician who thinks the only thing that a process engineer knows how to do is sit in front of the pc the whole day. And you know it has gone worse when you get so mad that you can't stop yourself from crying when you get back to the office.

And if you think it can't get any worse, a few hours after the incident, when you've calmed down and stopped sniffing and your eyes aren't red and puffy anymore you find a one inch long reddish line between your eyes where you've pressed a while ago while trying to stop your eyes from shedding more tears.

I feel like a baby.