Roxy

Roxy, a large black Labrador, was sitting up in his seat at the movies, wagging his tail, growling at the villain and barking excitedly at the hero's escapades.

The woman in the seat behind him was intrigued.

Excuse me, she said, tapping Roxy's owner on the shoulder, that dog is extraordinary. I've never seen anything like it!

Yes, he's surprised me, too, said the owner. He hated the book.