It definitely is a tough thing. I can't stand working so hard, putting in so much time, the sweat, blood tears, just to watch my hard work unravel. I've seen it happen with so many horses I've trained. I'm actually scared of what's going to happen to my current horse, my little 3 year old QH. He's still so young, but he tries so hard, and he needs light hands and a steady leg, with anything more hard he'll either fight until he drops or shut down. I'm afraid of what he's going to turn into when he's no longer under my care.
The other thing I hate is trying to give helpful advice just to have it ignored. I have a woman who I speak to frequently asking me for advice on training her Arabian for barrel racing. Well, his very first time EVER on the barrels she loped him around and complained how he was bulging out in the turns. I said it's because he doesn't know the pattern, just take it slow and he'll figure it out and know what you're asking of him. Then she said to me "Nah, I think I'll just wear spurs so he'll respond to my leg when I try and push him into the barrel more. I mean, we DO have a show this weekend." I couldn't believe it. I was shocked. I said he can do it without the spurs just take your time. But she refuses, she's taking him to a barrel show on Sunday and is going to gallop him hell bent around these cans when he's only ever loped around a pattern ONCE. Not to mention she's MUCH to big for this horse...(she's well over 200lbs and the Arabian she rides is only 15hh and obese himself). It makes me wonder why people ask for help when they don't want to hear what you have to say.
Sorry that was so long, I'm just disgusted with the situation right now.