A man went to the cinema. As he sat down to watch the film and his eyes got accustomed to the dark, he noticed a dog sitting on the seat beside him. He was somewhat bemused but decided to try and ignore the dog.
As the film progressed he noticed that the dog was reacting appropriately to the scenes. For laughter the dog wagged his tail and barked, for sadness he dropped his ears and whimpered, for violence he growled and bared his teeth. At the end of the film the audience applauded and the dog got up on all paws and barked and wagged his tail.
The man turned to another who appeared to be the dog's owner and said, "Wow, that was a great film, and what an intelligent dog you have there. Frankly, I'm amazed."
"So am I," replied the owner. "He thought the book was crap."