Show off

I went to the gym with Kolby this weekend so he could show me some of the stuff he's been doing with a personal trainer.  It was all going pretty well, I felt like I was getting a good workout and learning some new things.  

Then he picked up a big leather ball and said, "Okay, we're just going to throw this medicine ball back and forth.  It's heavy, so get ready."  

"OOOOOOF!"

Once I was able to inflate my lungs again, I picked myself up off the floor and we found something else to do.