WTF are they going to give you a Performance Report about?
I don't care if you were the best damn employee they ever had, you skipped out of work 3 times.
At least make an effort to make up some sort of excuse. Don't just skip-out assuming that "because it's Final Exam" week you don't have to go. It's final exam for everyone else too, and I'm sure that at least some of them managed to get to work. If you weren't expected to be at work you wouldn't have been on the schedule.
