QUINCE: We must have a wall in the great chamber, for Pyramus and Thisbe, says the story, did talk through the chink of a wall.
SNOUT: You can never bring in a wall. What say you, Bottom?
BOTTOM: Some man or other must present Wall, and let him have some plaster, or some loam, or some roughcast about him to signify wall.
– William Shakespeare
A Midsummer Night’s Dream, Act 3, Scene 1. Director Quince insists that the play must have a wall, as Pyramus and Thisbe spoke to each other through a hole in a wall. The players have a ludicrous discussion on whether a wall can be brought onto the stage with Bottom suggesting that one of them must play the part of Wall. Snout is selected for the important role.