If you dithered for ages yesterday and found the tuna melt horrid, it increases your determination to choose something today that is better.And that ratchets up the anxiety even further.

• 假如你昨天犹豫半天才选了金枪鱼三明治，然后发现吃起来很可怕，你今天就会有更大的决心选一种更好吃的食物，这就进一步加重了你的焦虑感。