In grade 13, I played the part of Annie in Annie Get Your Gun. In the scene from the ship, I was to shoot a seagull. The off stage gun jammed and I was left to ad lib for what seemed like an hour. They did everything they could to get it to work but to no avail. When no solution seemed in sight, one of the stage hands yelled "Bang" and threw in the stuffed bird. The audience just howled.
This video shows some of the fun behind the scenes with The Piano Guys. Love this. Enjoy!