I wouldn't let it bug me, I'd make a joke out of it. Quote him the part number and tell him with a smile that it was a very rare thing to find on an early build that doubles the value of the car. Life's too short to get uptight about nothing.

[img]http://i.imgur.com/boeexFms.jpg[/img]
31 Plymouth Coupe, 392 Hemi, T56 magnum
RS23J71
RS27J77
RP23J71
RO23J71
WM21J8A
I don't regret the things I've done. I only regret the things I didn't do.
"Wise men talk because they have something to say; fools because they have to say something. ~ Plato"