Robot Dog

In a factory, on a hill, a huge machine made robot dogs. The
robot dogs rolled out of the factory and were delivered to
owners who played with them and loved them and cared for
them.
But one of these dogs dents his ear while on the conveyor belt
and ends up in the junkyard instead. Scrap likes the yard, and
makes friends with the other dogs he meets there. But all dogs,
even robot dogs, want an owner. What can he do?