"Whimsical Souvenirs from Belgium If you want an original souvenir from Belgium, with a quirky sense of humour, visit the Brussels Corner shop. You can find two of these colourful stores within minutes of Grand Place. They are filled with fun and funky images of Belgian icons. You’ll find t-shirts, aprons, bags, hats, mugs and ties with colourful drawings of Belgium’s best loved images: waffles, Belgian endive, chocolate, beer, French fries, the Atomium and our loveable Manneken Pis. The humorous designs include quips about the Belgian weather and gems like a cone of Belgian frites with the words “This is a Belgian invention; therefore we call it French Fries!”"
When paying, the cashier (owner?) tried to pull the old scam where she takes a €20 bill and then gives you change as if you paid with a €10. Also gave no receipt until pressed so she could cover her tracks.
I have lived in Brussels for two years, and this has never happened anywhere else, so I doubt this was a legitimate mistake. I imagine it's because I was speaking English with my friend, so she thought she could scam a couple of confused tourists without them noticing. Avoid this place.