20. New Jersey: Slurping Soup
Table manners are typically enforced by parents at the dinner table, but in this state, they were once a matter of strict public law. An old public nuisance ordinance dictates that it is a punishable offense to slurp your soup in a public dining establishment. The law was heavily lobbied for by the owners of high-end restaurants. It was designed to maintain a quiet, peaceful atmosphere and prevent loud, obnoxious patrons from ruining the expensive dining experience of others. While modern police officers completely ignore the statute, maintaining quiet dining etiquette remains a highly recommended social practice.