[Buster Brown]

I used to say Buster's middle name was leave it because when we went for walks we were always calling out for him to leave it. Try teaching leave it. You put a treat down close but not where they can get it and tell them to leave it. If they leave it then immediately reward with another treat you have ready and quickly pick up the treat you have asked them to leave alone so they aren't rewarded for picking up the treat you told them to leave alone. Repeat - repeat - repeat until they get it. It takes a while for them to get the concept and you constantly have to train and reward to keep the training consistent.