There you are, all set to go, and now this!! Oh, those unexpected and unplanned for bumps in the road that effectively stifle anything productive! Your "this" can take many forms, be it sudden physical ailments, personnel squabbles, conductor's demands, problematic seating, unfavorable acoustics, unfavorable repertoire, a stuck valve, major fatigue, even a square wheel. You can fill in the blank, but be sure that some sort of "this" is going to happen somewhere, somehow, sometime.
Success is when you have learned to deal with life's "this's". Good luck with that! Once the little fellow trying to ride his bike gets over his initial anguish, he will think clearly to find a solution.
"Dad? Someone? Help!"
"Son, you know that a smooth sea never made a skilled sailor."
"Swell! Thanks, Dad. I'd like to see you ride this thing!"