I had similar experiences with the last two horses I bought. When I bought the Mustang the owner told me he was rode by someone interested in him the week before. So I take him home on trial, ride him everywhere, he is nervous but wonderfully trained and respectful. So I buy him. Then found out that except for the one ride by another potential buyer, he hadn't been ridden in two years. Gee, it would have been nice to know that when I brought him home, lol! No wonder he was a bit nervous. I just figured he was a high strung horse at a new place. Turns out with regular riding he is Mister Mellow.
The last horse I bought, my Fox Trotter, would leave home the first time, but then if say I forgot something and had to go back, she would refuse to leave home the second time. I took to carrying a crop and whacking her on the butt if she refused to move. Luckily she isn't a very dominant horse and after a few whacks she stopped refusing to leave and I haven't had a problem since.
So almost two years have gone by and I ran into her old owner, and he tells me how much trouble he had with her and how she would have fits and throw herself down, and how he hated her and all that, and I'm thinking, gee, I sure didn't hear any of this before I bought her. So I said "luckily she hasn't done that with me," and he's like "of course not, she had a good trainer" (meaning himself). Ah, the stories you hear only AFTER you buy the horse, lol! :roll: