This strip is based on an ill-fated game of catch I played years ago with my friend John.  He was the quarteback, I was the receiver. It went down almost exactly like it did in the strip, except at the end, when the ball smashed me in the face, my glasses went flying, and instead of saying he told me so, John just laughed his head off.  Coincidentally, I have never run that pattern again, to this day.  And John still thinks this story is hilariously funny.