Do I have to Come in Today?

I ate a taffy at the office today. It was black licorice.. BLAH! Horrible decision at 10:45 (I think)? in the morning. So that wasn't the best start.Regardless, I love that I'm taking off two days of work coming up. And OF COURSE I've been asked to do everything that day much to the disappointment of my employers. 

"Can you do a presentation that Monday"

"Umm,,,"

"Oh, no you're off that day.Oh, That's too bad.."

What am I supposed to say? Like "Oh yes, I'll call off my vacation now even though I've been here EVERY OTHER SINGLE DAY." Many times doing very little. Shesh! Should I feel guilty about this or just laugh because it's all so ridiculous. 

Here's the song I found at work today,to describe the mood. (and also has my name in it which is always a plus).