Good point Cassa...I never made that connection!
And you are right E, the final clue does appear to be meaningless. I think it just sort of pains us sometimes to admit that a Columbo episodes has its flaws.
I agree, Paul. I think the reason why I am so bothered by this episode is because there is so much good stuff there, but it doesn't come together in a satisfying way. The ending is somewhat clever, but there are too many holes in Columbo's logic.