When you see special offers on the shelves, your rational brain tends to go soppy with thanks and makes you want to return the favour by splashing out on unnecessary items.

• 当在货架上看到特别优惠的商品时，你会变得失去理性，认为自己非常幸运，使你认为自己应该归还这个人情，于是买了一堆不需要的东西。