history: My son was at a soccer tournament and his cleats broke! There was no time to find a store and shop but I always keep a pair of cleats in my trunk just in case.  They are cheap and a bit beaten up but they did the job and allowed him to play!
current: My son was in an away soccer tournament when his cleats broke!  I had an extra pair in the trunk though. 
next: That's lucky!  Did he get hurt from his shoes breaking mid game?