We were nearing the end of our set at an indoor art festival when I felt it. Something in my throat. If I sang the next notes as I always did, the resulting sound would be a hacky train wreck. Even the people who weren't listening would notice.
I routed around whatever was in my throat. The hack-inducing thing went away. The mother of all clams was averted.
Everything before and after that moment went well too. We got a lot more positive attention than I would have expected, given that we were only there to enhance the ambience. Still, the thing I'm most proud of is the thing that didn't happen. Funny how that works.