A few days ago I came upon a man walking two dogs.
Actually, the fellow was walking only one dog . . . the other, a German Shepherd, was rolling along on wheels.
The shepherd probably has hip dysplasia, an inherited condition common to shepherds. The man had created (or purchased?) a set of wheels that were harnessed to the dog's hips. Using this device, the dog walked normally on its front legs, while its back legs shuffled along the sidewalk.
As you can see in the photo, the shepherd was quite happy with this arrangement, totally relaxed and at ease in the world.
Walking along behind this group, I remembered Zen Master Seung Sahn's frequent teaching: "Dog understands dog's job. Pig understands pig's job. Only human being not understand human being's job."
The shepherd didn't check its situation or condition - it happily went about its doggie job. And its human companion certainly understood how to help his canine friend.
But I wonder why so many of us humans remain confused about our own correct job?