This happened in Nottcuts in Ditchling, East Sussex. It's a garden centre with a huge indoor shopping area and cafe.
Santa Claus had just walked past us, then this elf suddenly crouched and offered Laura a high five. Her very polite response made me laugh.
We've been saying "Yes, of course" ever since, and giving each other high fives around the flat.
Richard Pettitt, cartoonist.