Wagner's MBA Law of Age-Appropriate Halloween Costumes

Wagner's MBA Law of Age-Appropriate Halloween Costumes: It is always interesting to see what other people think is an appropriate Halloween Costume. For example, one lady in her 40s or 50s was wearing a costume at Disneyland we couldn't figure out... Naughty librarian? Naughty cheerleader? Naughty nurse? My wife and I weren't sure what that was supposed to be...