You never even think about kicking the living out of a dog or any other animal!We free-range, and my wife bought a full sized, 5 month old Labradoodle puppy. Our hens like to jump the backyard fence. I let the puppy out to go pee & she saw hens in the back of the back yard & took off like a sprinting giraffe. I was shouting "NO" and "COME" and running behind her to avert disaster, but she didn't stop chasing (honestly, she probably just wanted to play, not harm, knowing her now) until I got to her, and she KNEW she was bad wrong. (This dog is so smart it's scary) I kicked the living out of her a couple of times & told her to go lay down & stay there while scolding her. She hid under the table that evening like she was gonna die. The next time she saw a chicken, she laid flat on the ground & trembled. Two years later, she can walk among our flock with no trouble & they're not threatened by her at all. She would even play tag with our red rooster, it was a big game for both of them. So, I said all that to say that IF your golden doodle is trainable, and I'd bet good money that he is, all you have to do is let him know that when he goes for a chicken, he has messed up in a way that he doesn't ever want to mess up like that again. If that doesn't work, you know that there's a $0.15 solution to an $800 problem. At least at my house, anyway.