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.”