One day, while going 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 better of me, and I went inside to talk to the Nursing Home Administrator.
I asked, "Do you know there are six ladies lying naked on your front lawn?" "Yes," she said, "they're retired prostitutes, and they're having a yard sale!"