The tortoise, in turn, forgot to joke.

This is a scam. He put a turtle pattern on his back. When people see it, they will say, there is a turtle behind you. But if you stand in the other person's position, you will think, "Is there a turtle behind me? Isn't that you behind me? " So the man standing behind you is a turtle in disguise, so. . . . . . A cold joke, dear.