You are in your 20s, exhilarated as you zoom down the highway on your motorcycle with the wind in your face. Then, in what seems like the next moment, you wake up in a hospital, missing a leg. You are a 75-year-old with severe vascular disease, also waking up in a hospital missing a leg, but you saw this day coming. Several efforts to save your limb failed; amputation was necessary. You are an 11-year-old girl with congenital limb deficiency. You feel yourself to be different from your family and friends.