There's a really big snake.

Never been to Ikea before. No one told me it was enchanted. All people who enter are doomed to walk in circles, passing the same secret-language-labelled displays over and over until they decide to buy something. At that point, the prices get lower the more one looks around, drawing the starry-eyed customer deeper and deeper into the maze. The key to escape is left right out in the open, mocking those who overlook them -- hideous yellow bags are piled in bins around the store, and only by plucking one will the unwitting shopper reveal the exit.