What is the best/worst you've done when selling at a swap meet?

... I had a bumper jack.
Guy asked how much. I said $20.
He haggled and haggled and berated the item and haggled and wouldn't let up.
Finally I said, give me five bucks and just take it...to get him outa my way.
As soon as the money changed hands-
He starts jumping up and down and yelling "I sure got you, har har har"
"that's for a 67 super sport, I got you real good"

I just didn't have the heart to tell him it was for a 72 skylark.
I had a '71 Skylark once. There wasn't a single part on that car that was worth $5.

Guy like that, you just want to beat him with the jack.
But it's almost as satisfying to picture him carefully restoring it, then being told by a judge at a show it's the wrong jack. :D

- Eric