> A variation of the superstition also forbids quoting lines from the play within a theatre except as part of an actual rehearsal or performance of the play. T

> A variation of the superstition also forbids quoting lines from the play within a theatre except as part of an actual rehearsal or performance of the play. This one was probably born out of people getting sick of hearing Macbeth references getting dropped all the time. Napoleon Dynamite of the 17th century.