hind-legged disabled dog hesitates to begin his first run after receiving dog wheelchair

accident adopt after animal background begin broken brown canine care charity cheer cheerful closeup companion creature crippled csr disable disabled dog domestic donation equipment event family first friend grateful hand handicap happy help hesitate hesitates hind hindlegged his human leg love mammal medical mobile mutt owner pet pity receiving recover relation rescue restart run social start step support tearful tool training vehicle volunteer wheelchair