I've found out the hard way that Snafu, the otsb, is very obnoxious about it.
He will get angry and pout if I don't give him a treat while tied up. He won't stand still while I try to groom him b/c he keeps turning around to try and get a treat. While I'm riding him, he'll stop everything and bend his neck to his butt hoping to get a treat (I have him stretch like this on the ground for a treat). I've come to realize that he is now only allowed a treat when I first get to the barn, and just before I leave. NONE OTHERWISE. Lol
My mare is a completely different story, besides following people around while smiling, she never really begs for a treat. She'll be the first one to the gate if customers want to feed them carrots, but what horse wouldn't? Lol She'll turn her head once and a while I groom her and I'll give her a treat, but she doesn't do it nonstop and she doesn't move from side to side either. I don't think she's too spoiled from it.
I have a friend who feeds her horses treats like a supplement with their grain. She always adds a few treats to their meal. Now I don't think I'll ever go that far, but yea...
I guess some horses handle it different than others. Do any of you have problems with horses and treats? While training or any other time?