Theatrical Logic

In is down, down is front,
Out is up, up is back,
off is out, on is in,
and of course -
right is left, and left is right.

A drop shouldn't and a
block and fall does neither.
A prop doesn't, and
a cove has no water.
Tripping is O.K.
A running crew rarely gets anywhere.
A purchase line will buy you nothing.
A trap will not catch anything.
A gridiron has nothing to do with football.
Strike is work
(in fact a lot of work).
And a green room, thank God, usually isn't.

Now that you are fully versed in
theatrical terms - break a leg...
But not really!

Source: Posted backstage in many fine theaters across the continent