Dog had a limp but was perfectly fine. Here is why

This video's gone viral of a British man and his dog limping down the sidewalk together. The man's on crutches. 

The caption tells the story. Quote, "Cost me [$400] in vet fees and X-rays. Nothing wrong, just sympathy." 

So the dog wasn't injured, he was just imitating his owner. The guy and his wife did a TV interview and they even playedvideoof the dog running like crazy when the man wasn't around. This happened last summer, but the video was posted last week.