Bad: I was at a meeting at Other Facility and completely forgot about today's group lunch out.
Good: Turns out it was just an anxiety dream - no meeting, lunch hadn't happened as it was 7:00 a.m.
Bad: As I was heading out the door at 8:30, I checked my phone only to see boss's boss asking if we were still meeting at 8:00?

I would have sworn on my first, second, and thirdborn that we were supposed to meet at 9:00.
Good: We still had time to discuss what we needed to discuss.
Bad: I am really really mentally fried.
Good: I achieved everything I needed to get done ahead of deadline.
Lunch was yummy, too.