Interpretation

 Last week I had to go to my CPAP supplier to get the settings on my machine adjusted. It's in a small plaza about a half hour away. Sometimes I stop by the Food Basics after, and I've run into or eavesdropped on several interesting characters. I didn't need any groceries, so I got in the car and circled around to wait in the line to exit the parking lot. The light was red, and it was a long line, so I was there for a while.

A youngish guy walked out of the bank near the street, then clapped his hand to his head dramatically and turned around and ran back in.

I thought "oh my goodness, I didn't think people really did that to signal remembering something except in comics!"

And then I thought "Oh. I wonder if he just....." *guy exits bank again, putting on a baseball cap* "....forgot his hat."

Then he ran across four lanes of people entering and leaving the parking lot and almost got run over. 

It was quite an eventful thirty seconds.