The Panda
A Panda walks into a restaurant.
The waiter takes his order.

When the order is ready, the waiter takes it to the Panda. The Panda eats the meal, pulls out a gun, shoots the waiter and runs out of the restaurant.

The owner of the restaurant goes running after the Panda. When the restaurant owner finally catches up to the Panda, he asks, "Why did you shoot the waiter?"
The Panda tells the owner to look up 'Panda' in the dictionary.

The owner goes back to the restaurant and looks up 'Panda' in the dictionary. Under 'Panda' it says: Eat shoots and leaves.