Found this on another forums.

[Vipershark]

A panda walks into a restaurant and orders the special. After finishing his meal, he pulls a gun out of his fur and shoots his waiter. The manager runs out in horror, and as the panda walks for the door he screams "WHY!?" The panda turns and says before leaving, "I'm a panda, look it up in the dictionary.

Later that night, the restaurant manager looks it up. The entry reads: "Panda; Eats chutes and leaves."

oh god that was awful