At work in body but not in spirit

It's Saturday morning and I'm at work. I really don't want to be here today, and I had a fantastic opportunity to stay home today, but I didn't. I didn't wake up on time, I was an hour and a half late for work. I debated just calling in and staying home for the whole day, but I didn't do it. I've been here for about an hour and I've already been through 2 cups of coffee. Arrgh.