Don’t depend on your patrons or ushers to know what to do during a fire alarm.

backstagejobs.com: "The Dodge Theatre (now the Comerica Theatre) in Phoenix, AZ had its fire alarm activated in July of 2008. What should have resulted was a full evacuation of patrons from the building. Instead, few patrons exited, none were told to evacuate, and those that exited were asked to return, with the alarms still going off.