Ushers can suck. I had an usher at AWAKE & SING sit in the back row behind me, fall asleep, and SNORE. We woke him up, and this repeated four times.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle