Personal *&$%$in Hygiene

There's a sign in the bathroom. You know, the one that tells all the workers to wash their hands after using the bathroom. Why doesn't that sign tell everyone to wash their hands? If I wash my hands but captain *&%$face doesn't, when I touch that door I'm going to get whatever herpes he has on my hands. What it should say is "Wash your dirty $#@! you sick *&%$