The most awkward standing ovation is for an Act I Finale, I think. I saw the OBC of WICKED and Defying Gravity got a standing ovation. In the row in front of me, a woman was trying to exit her row to use the bathroom. She was blocked in until the ovation subsided. She kept yelling "Excuse me. EXCUSE ME!" to the teen next to her who was too enraptured in the moment to notice.
AUGUST OSAGE COUNTY also got standing ovations after EACH of its three acts.
"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