Oh,
Whatta pisser!
A brand new K turned out to be a beat up refugee from it's previous owner? OUch...

A Kurz is a Kurz. Panels can be replaced, keys cleaned and the smell....
Well you'll have to weight for that to go away.

You have multiple options. The best one (in case you don't get the money back) is to inflict as much damage on a seller. Just enough so his apearance slightly resembles the appearance of the used and beat up Kurz.
Eye for an eye kind of thing. MOre like, key for a finger....
LOL

But really, couldn't you tell that it's used when you were checking it out in the store?

-ED-
_________________________
A gentleman is one who never hurts anyone's feelings unintentionally.
- - - Oscar Wilde