Piece Professional

What’s the worst piece of theatre you’ve ever seen.?

For the purposes of this question lets ignore amature shows. Worst piece of (allegedly) professional theatre you’ve ever seen? Musicals count.

I saw Urinetown on Broadway, a lovely musical-comedy about going to the bathroom. Hugely overhyped and self-indulgent.

Cabaret in NY was okay. However, I was horrified [...]