I like to write: the exercise ball edition

A colleague and I recently started sitting on exercise balls at work. We have been the object of much ridicule, but we don't care because we are strengthening our cores and fighting the scourge that is inactivity. We also like to make a lot of jokes and puns with the word ball, as you do.

Here's our take. And by the way, if you don't mind people laughing at you, then I highly recommend it.