Authors note: I am a nightclub security expert witness. I've never worked in a bar. What qualifies me as an expert is my decades-long experience in security management. Security personnel are known under many different titles such as, most commonly, bouncers but they are also called ushers, greeters, door men, crowd control specialists, etc. The truth, however, is that there are basic tenants to any security program, regardless of business environment, and bars and nightclubs are no different with the exception of alcohol. Bouncer = Security.