I think I've told this one before...
Here are some pratfalls from my orchestra's tour.

Basically, one of the venues didn't have a raised stage, and instead had some portable platforms which they built under each section. The woodwind (being behind the strings) ended up wobbling on a rather precarious structure held together with duct tape and fear.

Halfway through the dress rehearsal, rather nervous of falling, the wind sit and play like statues as the conductor falls with the grace of an ice-skating hippo into the viola section. Rather than break the music off, he continues frantically waving his baton from the midst of terrified string players.

The piccolo player, confronted with a solo lead by a baton that is slapping a second violin's ear with every upbeat, has a fit of the giggles. This makes the platform wobble.

While playing his solo, concentrating so hard on not laughing and playing properly that gravity is no longer a concern, the piccolo player slowly keeled sideways- still sitting on his chair- off the platform. He was almost at a right-angle before he realised, and instictively rolled himself into a defensive position.

At the crash (which was out of time) the orchestra grinds to a halt. The conductor re-emerges from the strings, looking slightly the worse for his unexpected freefall, and says in a terrified voice,

"Oh my god, is your picc okay?"
(Sivvus trolley collision in the fruit aisle led to a jam, Sat 20 Aug 2011, 20:59, 1 reply)

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(Simian Typewriter Supplies Pty. Ltd. is house hunting in the neighborhood of infinity, Sun 21 Aug 2011, 3:17, closed)