maybe go for border collies then, two or three, they are better with people, or even a cross between the two. I find cross breeds are much healthier than purebreds. humans selecting for specific traits over many generations always causes trouble
If all else fails, look up "conditioned taste aversion". Google it. Basically you put out chicken carcass (with feathers and all - looking and smelling like real chicken) spiked with a dewormer called levamisole that makes them feel nauseous but doesn't hurt them. They learn to associate chicken...