A British man recently took his dog to the vet in the hopes of finding out why the pooch was suddenly walking with a limp, but after spending $400 on a series of tests and X-rays, it was determined that there was absolutely nothing wrong with him. In fact, he was faking it.

Russell Jones of London recently broke his ankle and was walking with a boot on his foot. The very next day, he noticed that his dog, Billy, was walking with one of his front paws lifted off the ground. Thinking that Billy may have also suffered an injury, he brought him to the vet who found no broken bones or any other injury. $400 later, the doctor told him that Billy was simply imitating his owner’s walk.