My Himalayan will be one year old next month and he still does not respond well to his name. He has a rather high strung personality and has had since I brought him home from the breeder. My older Persian (he's 18 months) knows his name very well and in fact responds like a dog would to his name and he is very laid back and has a very loving personality. Could my Himalayan not respond as well because of his over-all high strung personality or is there perhaps another reason? Thanks for your thoughts!