Thanks for the information. My brother had quite a different story.
Leaving Spain, he kept piling up all the items that he purchased, it took up all of the counter, that the officer just gave up, exclaimed "Stop, enough!", took all the receipts and stamped them without referencing the items.
In that "pile" were jewellery from Cartier, watches from IWC, Richard Mille, some exotic Bs and Ks from H, and footwear from Louboutin and Saint Laurent.
He called this tactic "Shock and awe".
He didn't even declare these upon arrival, and not one officer questioned him upon entry. Even going through customs, he only declared a pack of peanuts he'd bought to eat. Most likely reason they left him alone, he dressed like a bum.
Sometimes its good to be the book that gets judged by its cover.