Bathroom

John knew that the clothing store bathrooms were better taken care of than the main mall ones. So he walked past the clothes and towards the far end of the store.

The bathroom was a single occupant one. But for some reason they had two identified as male and female instead of just Unisex. He could have sworn both were in use, but after five minutes he checked. And they were empty. He thought he remembered seeing a person go into one of them, but it must have been his imagination.

He finally got into one and started his business.