I’m not looking out my window at 10:30 at night.
I looked out my window one night and saw this frightening old guy looking back.
Turns out it was just my reflection, but I learned my lesson.
When you look at your reflection, the image you see is flipped horizontally, so it appears reversed. Why doesn’t it flip vertically, too? If you turn the mirror sideways, nothing changes.
And if mirrors flipped reflections both horizontally and vertically, in order to see how to shave, would you have to stand on your head?
What a pane.