Hi everyone I have a problem with my my 20 month old large pure bred whippet Smokey so named because he is predominately blue with a few white markings whenever he is off the lead which is most of the time during his daily exercise as we live next to marsh land and I definitely cannot walk as far as he needs and enjoys to run but comes back when called unless it involves another dogs crap and not everyone he sees just those he picks and if he likes it he eats it, I see it, shout, and he takes it to go. Is this some kind of deficiency in his diet and if so what ? he also eats doc leaves when he finds them. He really is an affectionate well behaved dog although very excitable but this nasty habit tends to make me reject him when he tries to be affectionate can anyone give me some idea of how I can break this habit of nastiness many thanks Chris