A panda lumbers into a diner. He orders a sandwich, eats it, then draws a gun and opens fire on the other patrons.

“What are you doing?” asks a surviving waiter, hunkering amidst the carnage. As the panda heads towards the door, he produces a poorly-punctuated wildlife guide and drops it on the counter.

“Hey, I’m a panda,” he says at the door. “Look it up.”

The waiter flips to “Panda” in the book and, sure enough, finds an explanation. “Panda. A large black-and-white bear-like mammal, native to China. Eats, shoots and leaves.”