Neighborhood Pig

For the past year, our family has noticed a man walking a pig on a leash around our neighborhood. We asked him once as we were driving by what the name of the pig was and he quickly answered, "Its a pig, I didn't give it a name its just pig." Wierd, then why walk it every day on a leash? I caught sight of the man and "pig" outside my kitchen window so I ran and got the camera and took a picture.