St. Louis police hope the threat of severe embarrassment at home cuts down on prostitution on the city streets. Police plan to send postcards to the homes of customers of prostitutes, thanking them for visiting the place where they were picked up, and reminding them that prostitution is illegal. Prostitutes’ customers who are arrested face only small fines but officers hope the posibility that somebody back home will learn of the solicitation will keep Johns – the customers of prostitutes – from trying to make deals to begin with.