At the gym, my assignment was simple.  Rotate the heavy kettlebell around my head six times.  Change direction.  Repeat.

No problem, I thought.

Rotation one.  Fine.

Rotation two.  Slower.

Rotation three.  Getting very tired.  Rotations getting weaker.  Orbit closer to my head.

Then, bounce!  The kettlebell had clipped the back of my head.  Just a tiny bounce.  Really, no pain.  Something about a “hard head.”

Those around me looked startled.  The bounce must have made a noise, too.

No really, I’m fine, I assured them.  Fine, with the exception of a little wounded pride.  That part really hurt.