last night at my daughter's elementary school concert, I had to watch helplessly as a trumpet took a swan dive.
The beginning band played first, followed by the advanced band. I saw across the room that one of the beginners had his trumpet resting only on it's bell at the edge of a table. I told my wife it was making me nervous, but I was seated in the front row and it would have been a disruption for me to go and move the trumpet.
Just after the next tune started I saw a kid bump the table and the horn did a 180 degree turn and hit flat on its mouthpiece. That's one horn that didn't go home in a case.