School band performance in Victoria Concert Hall. Exchange program - UK band was playing with us (they were good!). Stage too small - our band and theirs were side by side. Really squeezy. Visitor band was playing something really nice and fun, then we heard a loud "thump, boom boom, ka-tonk!" Our principal tuba player was enjoying the music so much and rocking his chair to and fro, then he rocked his chair just slightly too much, and fell down the stairs at the side of the stage where he was precariously sitting - him, chair, tuba and all... Huge laugh from the audience...