McDonald’s advises customers to dunk their fries in milkshake
Only a Brit would find this odd. Every American over the age of 4 knows this implicitly, and has a well formed opinion on this practice. Brits on the other hand, if it is not fish, or chips, or blood sausage, or Spotted Dick can't comprehend the newness.
Of course, these same people though a union with a Haggis eating rabble of skirt wearing sheepherders was a good idea as well.