We were in the car on Sunday morning, and Michael was expounding one of his ropey theories. I don't recall what it was, or what his justification was, but in summing up he used the word "hence". I feel we have crossed some major threshold and there is no going back.
I HAVE JUST REMEMBERED: It wasn't anything impressive about the nature of the core of the earth, or the structure of space time - his theory was that Winston (who was in the car with us) had farted. "Hence the smell" he concluded.