...where it stops, nobody knows! where does this come from? somebody said it in the office this morning and now we're all trying to figure out where it comes from. Does anyone know? It seems that all of us - those of us in our 20's, 30's and 40's have heard it, but can't think where.
I like the roulette theory, never thought of that. But a another less clever explanation could be that round and round... is like a circle and a circle has no beginning and no end. I do love the roulette answer though!