[post_page_title]Look in the mirror[/post_page_title]
Now this employee seems to have taken things too far. In fact, they may need to start looking for another job, because perhaps their customer took this personally and got offended.
Upon asking for a joke to be written in their pizza box, they received something that could either be hilarious, or offensive. The employees put a piece of shiny cardboard inside, to serve as a mirror – basically if the person looks in the mirror, then they are the joke.