One day, while walking to the store, I passed by a nursing home. On the front lawn were six old ladies lying naked on the grass.

I thought this was a bit unusual, but continued on my way to the store.

On my return trip, I passed the same nursing home with the same six old ladies lying naked on the lawn.

This time my curiosity got the best of me and I went inside to talk to the manager.

"Do you know there are six ladies lying naked on your front lawn?" "Yes, " he said, "they're retired prostitutes, and they're having a yard sale."