Even the dogs are getting into it. From the DOGS OF C-KENNEL comic strip by Mick and Mason Mastroianni.
First frame: A human is looking at the Siberian husky chewing on the tennis ball with great joy. Human says, "Isn't it cute how he becomes so fixated on that thing?"
Second frame: "It's like it's his whole world!" As the husky continues to chew.
Third frame: The human turns around and takes out his smart phone. Another dog in the kennel says to a third dog, "It's like it's his whole world."
I Think the Dog Has Something. --RoadDog