Originally Posted by Mingiz
The only reason I would have a problem with it is because it can /will
turn your horse into a treat mongrel and next thing you know you'll wonder why he all of a sudden starts biting. A barn owner/manager should know that. He probably doesn't mean any harm by it. Just flat out tell him no treats for your horse.
How about it MAY turn your horse into a "treat mongrel"? I've given all of my horses tons of treats over the years right from my hand and plenty of times for no reason at all. They've never started biting or harassing me for treats. Heck at the very least I've had great results from it. My horses always come over to say hi when I'm around the barn. Half the time they get treats other times just a scratch.
In my opinion it's all in YOUR attitude. If you act like a pushover they may start biting you and pushing you around. Act like the calm confident leader they want and it doesn't matter how many treats you give them. To me that's kind of like saying "don't pet your horse, he'll end up liking it too much and start pushing you over to get rubbed." Now if the horse starts to get pushy, you move them back and let them know it isn't acceptable. If you nip any disrespect in the bud immediately it shouldn't escalate to biting. *Disclaimer, I'm sure there are horses out their you can't give treats too because of behavioral reasons, but I think they're the minority.
Sorry off topic. OP they're your horses, if you don't want someone giving them treats tell them so. I give plenty of directions to people around my horses and expect them to be followed (everything from treats, feeding, scratches, riding, and leading). Be calm, confident, and polite. If he asks for a reason tell him whatever your reason is.
Just curious, what is your reason?