I think it qualifies.

In Brazil, back in the 80s, i bought cheap older LPs and changed the price tag to that of a new LP.

Then i would exchange them for new records. So i always got new stuff for half the price.

It worked until i had each one my school friends go to the store once to reclaim the replacement, after i did it the first time.

It only worked in that specific store, because of the way they tagged the prices on the LPs.

Does this count somehow?