Eighteen hours on a ferry full of people, cars and other dogs. Mrok coped better than we expected, and we learned that his calm depends mostly on ours. Then, on the way home, we met a white poodle.

A dog does not navigate by nose alone. Dogs and people learn in the same way: by rebuilding the network of neurons. The brain consolidates every path, including the wrong one.

Mrok has hip dysplasia. We found it in a dog who runs, swims and shows nothing wrong. How is that possible, what dysplasia actually is, and what can be done before any pain appears, we describe through our own case, without scaring anyone and without pretending to be vets.