On the list of bits of knowledge that you hope you will never have to use in real life, along with how to escape from a car that is submerged under water and how to defend yourself against a bear, is an understanding of the bail system. However, it can be a good idea to at least have a working knowledge of what bail is and how it works, just in case you or someone you know ever ends up facing time in jail. Let’s say you commit some sort of crime and get arrested. Bail is the amount of money that the courts require from you as a security deposit if you want to be released until your court date. Show up for court and the money is returned to you. Fail to return on your appointed day and the court keeps the money. It’s important to remember, however, that there are times when a court will deny bail, making it impossible for you to get released before your court date. Here are some reasons why this might happen.