history: I went to work yesterday wearing two different shoes.  I was half asleep when I was getting around and did not notice So I went to work yesterday wearing two different shoes.  I was not fully awake when I was getting around in the morning.  Not my best moment. I have done that. It happens to the best of us
current: I didn't even realize it until someone pointed it out about halfway through the day.  I wanted to disappear after that.
next: I am sure no one really noticed