I think it would be better to say "no" when bad behavior presents itself. Otherwise the chickens = bad and not the behaviorWhen my son brings his young lab here we keep him on a leash, just in case. But, luckily, he’s never shown any aggression. I realize that’s not a reality for a pupay that is your own. But, if I get an LGD, I plan to train it, on a leash, to go by the chickens, and say no!! I have a bunch of friends who have trained their LGDs that way. The key, I believe, is to not let them view them as a play object.