Being 40: Reaching to scratch a little itch on my shoulder blade and putting myself out of action for 10 mins with a painful shoulder.

Every few years, my back finds a new way to yell at me for not doing anything. Real examples: 23: Getting dressed 25: Picking up my bike 30: Sleeping 40: Sneezing It gets increasingly ridiculous. By the time I'm 60, I'm going to put myself out of commission for a few days by blinking wrong.