Three turtles decided to have a cup of coffee. Just as they got into the cafe， it started to rain.
　　The biggest turtle said to the smallest one， “ Go home and get the umbrella.”
　　The little turtle replied， “I will， if you don’t drink my coffee.”
　　“We won’t，” the other two promised.
　　Two years later the big turtle said to the middle turtle， “Well， I guess he isn’t coming back， so we might as well drink his coffee.” Just then a voice called from outside the door， “If you do， I won’t go.”
　　三只烏龟决定去喝咖啡。它们刚到咖啡店的门口，就下起雨来。
　　最大的那只乌龟对最小的乌龟说：“回家去取伞吧。”
　　最小的乌龟说：“如果你们不把我的咖啡喝了，我就去。”
　　“我们不喝。”另外两只乌龟答应说。
　　两年后，大乌龟对中乌龟说：“好吧，我猜他肯定不回来了，我们可以把它的咖啡喝掉了。”正在这时，一个声音从门外传来：“你们要是喝了，我就不去。”