Here's a funny short video of Chinese people being exposed to fortune cookies (an American invention) for the first time:
Americans find high emotional attachment to the slips inside their cookies, looking to them for winning lottery numbers and becoming upset when the fortunes inside are unfortunate. The Chinese, on the other hand, would often tell me after trying the curved vanilla-flavored wafers, "Americans are so strange, why are they putting pieces of paper in their cookies?"
Introducing Fortune Cookies to China
(Thanks, Tim!)