Personally i don’t see anything wrong with “bribery” in the form of positive reinforcement and actually think it’s the number one most effective way to end this behavior… I give every horse a treat when I catch them in the pasture, every single time (when I’m getting them for work/riding, not for mealtimes obvi).
I agree with JB - there’s gotta be something else going on. Horses don’t just ~decide~ they don’t wanna go outside for no reason.
This 100000000%. People assign way too much human-like agency to a horse when they don’t do what you want… it really is much simpler than that. You can’t avoid making horses do things they don’t want to do, but each time you have to beat them into it and use force, you’re making it that much worse for them and that much more of something they don’t want to do.
Everything you listed - shots, feet, baths, fly spray, crossties, wash racks, trailer - are not natural things that horses should automatically agree to wholeheartedly. It’s all negative associations vs positive associations, and when you make something rewarding for them, they immediately want to do more of it.
I am not a positive reinforcement trainer by any means, but I do have one example where +r REALLY worked for me. My mare HATES baths with all her little heart and will balk on the way to the wash stall which is separate from the barn. I tried beating her, it would work once or twice but would get harder and harder over time to the point where if I even turned her body to face the general direction of the wash stall she would plant her feet.
The only thing that worked was literally going back to square one and rewarding her for every single step she took towards the wash stall. I taught her targeting with a clicker and she learned to take steps towards her target stick for treats, and we’d do a super slow process with that, basically slowly luring her towards the wash stall.
Over like a session or two of this, she was completely fixed… I had to put “money in the bank” of her associations with the wash stall so that she thought of it as a rewarding place and not a bad, unpleasant place.
She was never ever scared or in pain, she just doesn’t like cold water and we don’t have hot water available, and she has no choice, she has to get hosed off when she’s sweaty. Now that it’s winter she has no problem walking in there, because she hasn’t had to have a cold unpleasant bath in awhile.
So I’m the summer when I was hosing her every day, I had to reinforce that positive association quite often. If I ever got impatient and beat her into it, she’d backslide and balk again the next time. I couldn’t whip her to take a step forward and then reward when she did because it just wasn’t enough positive to outweigh the negative; she already doesn’t want to go to the wash stall as it is.
And since I don’t have the option of making cold baths better by installing hot water at my boarding barn, I have to do a lot of reinforcement in other ways to make her agree to going. However, in other cases besides this, it might be actually really easy to improve the environment or the circumstances of whatever the horse is saying no to, to make it easier on everyone.
When you build trust with your horse in this way you might find that a lot of stuff comes easily after that. They learn how to learn and they get excited to see you and go with you wherever, instead of saying no to everything, and with good reason from their point of view, because nearly everything is a nasty, unpleasant experience for them. And I’m not saying that’s how it is for you and this guy, but that’s definitely how it used to be for me and my horse, and our relationship has completely transformed since I started approaching things from a positive reinforcement angle instead of a “consequences for being wrong” angle.