Here's a list of strange rituals commonly observed in the theater world:

• "Break a leg" - Wishing actors good luck
• No whistling backstage - Believed to bring bad luck
• "The Scottish Play" - Avoiding saying "Macbeth" inside theaters
• Ghost light - Leaving a single light on when the theater is empty
• No peacock feathers on stage - Considered unlucky
• Avoiding real money or jewelry on stage
• "Thespis' Ghost" - Inviting the spirit of the first actor to watch dress rehearsals
• No blue on stage - Unless balanced with silver
• Forbidden last lines - Not saying the play's last line during rehearsals
• "The Second Act Curse" - Avoiding compliments after the first act

Do you know any other strange rituals followed by actors and staff working in theaters?