I think the standards in dance are weird for so many things, but I understand the aesthetic aspect that keeps adjustments off the stage. Dancers are also expected to dance injured, and keep smiling, where many athletes would pull out for their own health.

One of the wildest costume adjustments I ever saw was at a performance in Strasbourg when I was in high school. I don’t even remember the ballet any more, but during a pas de deux the zipper on the ballerina’s tutu slid open. Her partner switched her from a pirouette sequence to circling her in an arabesque while zipping up her tutu with his free hand.