You arrive in your hotel room and realize your forgot your can of ginger ale in the car. You decide to take a can from the hotel fridge to settle your stomach. Can you replace it with a can you buy from the local Walmart/Target to save yourself $2? After all, you are replacing the can you took with the exact same can; the hotel is not losing! Or must you pay the hotel the $3 that they charge for a can of pop?