I am reminded a little of an old joke that has been retold over the years to mention any number of famous conductors. I'll pick one at random.
The orchestra was in dress reherasal for "Aida" by Verdi under the baton of Sir John Barbirolli. You may or may not know that Aida is set in Egypt, and a full-blown production includes elephants (even though they didn't actually figure much in Egypt's history).
As Sir John rapped on the conductor's desk for the umpeeenth time to stop the orchestra and have them go back to correct yet another mistake, an elephant walked across the stage and dumped a mighty load right in the middle.
Sir John looked up and said, "execrable manners. But what a critic!"