hi mate, been there, worn the tshirt lol, i had three cats and moved two dogs in and then got a bull mastiff (from birth), probably a little different, however we now dont have any cats that was several years ago different partner, this time after rest passed away got a rescue lurcher and lakeland and i admit wouldnt dare let the lurcher especially near a cat, he goes absolutely nuts and i mean nuts, untrustable, i think u need to have em together from birth, sorry if this does not help, tc