Why you say Macbeth in a theater?

It is considered bad luck to say the name "Macbeth" in a theatre. This superstition dates back to the 17th century, when the play was first performed. It is said that during the first performance of the play, an actor accidentally said the name "Macbeth" backstage, and the performance was plagued by accidents and misfortunes. Since then, actors and theatre workers have avoided saying the name "Macbeth" in a theatre, except when they are actually performing in the play.

If an actor or theatre worker does accidentally say the name "Macbeth" in a theatre, it is said that they must perform a ritual to ward off bad luck. The ritual involves spitting over one's shoulder, turning around three times, and knocking on wood. By performing this ritual, it is said that the actor or theatre worker can avoid any misfortune that might be caused by saying the name "Macbeth" in a theatre.