In her amusing book Eats, Shoots & Leaves, Lynne Truss bemoans the problem of poor punctuation in today’s world. To illustrate, she tells the funny story of a panda who enters a café, orders a sandwich, eats it, and then pulls out a gun and starts shooting. When a waiter asks him to explain his behavior, the panda hands him a poorly punctuated wildlife guide and asks him to look up the description of a panda. It reads: “Panda. Large black-and-white bear-like mammal, native to China. Eats, shoots and leaves.”
Having a comma after the word eats is an error that changes the whole meaning of the last sentence. The words shoots and leaves become actions, instead of plants to eat.
Thinking Out Loud 