One of the busiest times of the year, so let's run out of stock.

Coca-Cola vending machine, Science World, Vancouver

The period between Christmas and New Year is always busy at places like Science World. Children are out of school and many parents get a break at work. So, parents, and grandparents, are looking for ways to entertain youngsters. On December 29, Science World was packed. There were standing room crowds for all of the shows and more children running around than I've ever seen at the place.

You'd think that both Science World and Coca-Cola, the provider of this vending machine, would know that there would be a big demand for drinks and stock up accordingly.

Coca-Cola vending machine, Science World, Vancouver (Detail)

But at 2:00 pm this was the display that greeted customers. Coke Zero and Barq's Root Beer were the only drinks on offer.

I wonder how much revenue was lost due to running out of stock?