The aunt continued, "Every time I come to clean the men's bathroom, I knock on the door first to see if there is anyone in it, and then put the cleaning sign outside the door and come in to clean it.
I remember the first time I knocked on the door, there was a man who coughed and there was someone inside, so I think I'd better clean the ladies'bathroom first.
When I came out and was ready to clean the men's bathroom again, I knocked at the door. There was still someone inside, and the market was locked. I think I'll wait a little longer. Then I'll go to...