You notice a dirt pattern on the rear door of your car. You think "aha - aero effects" and carefully study this pattern for about 10 minutes.
Then you check on the other side - no pattern.
You then check again and re-study it, creating theories as to why it could only be on one side.
Finally you remember - that is the door A junior takes his school bags out of and he
a) never uses the handle to close the door and
b) had Art this afternoon and didn't wash his hands
...and breathe.
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[I]So long and thanks for all the fish.[/I]
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