dumbest excuse someone gave you for not buying part/ car from you?

When asked to price something, I offer 1/2 of
what I would pay for it.
If they get pissy I say: Hey, I'm just trying to make it easy on me
and we have to start somewhere.

If you don't want to play the game, put a price on it.
If you think I'm going to offer more than its worth..... that'll never happen.