I have had most of my gun dogs trained so they will not eat anything unless I give it to them or it is in their own feed bowl.
Takes a little time, but hunting in the uplands of PNW where there is still some govt trappers that use poison for pests it is the only way that you are sure of your dog going home with you and still breathing.
I have some neighbors in my new home that I have already taught some choice words in English, they have yappy dogs that make vocal sounds that are uncalled for, for no reason. Now if they can find out what Motherfuckers means.