Brian Byrne: I started experiencing an awful burning sensation between my legs
For every action, there is an equal and opposite reaction.
Isaac Newton probably wasn’t referring to the red marks on the inside of my thighs or the bloody cut on my left heel when he coined that phrase.
About a month ago, I took up the at first horribly exhausting, but later oddly invigorating hobby that is outdoor running. The horribly exhausting bit lasted a full two weeks.