As any CostCo member will know they have a wonderful returns policy.
My business partner and I have over the years taken the piss with returns.
They always ask for the reason you have returned the goods (for a full no quibble cash refund for those non CostCo goers).
A couple of examples being returning memory cards that we couldn't sell for profit on eBay and a table football game reason being "the kids are bored of it".
But the best one ever was tonight when we both returned our 200quid Xmas trees and when asked what was the reason......I piped up "Well its fucking January!"

Oh we got our refunds btw