I collected one of these just recently. Was at a smallish country show and arrived just in time to see a horse bust loose out of the tie-up to the trailer. Two horses tied up, one started panicking and pulling, just got worse, and then the halter blew and the horse went cantering off at a good clip. The remaining horse was freaked out by all of this, from what I could see, and was ripping out a lot of whinnies and starting to hop around. A guy erupted from the trailer and started *shouting* at the horse angrily (yeah, that's definitely the way to de-escalate) and then, I was appalled to watch, hauled off and socked that horse in the face. The horse pulled it's head away, peeled its lips off its teeth, and screamed at this guy as loud as it could. You don't have to be an Animal Communicator to know what it was saying.
Later, I saw that same horse - which was huge, taller than my guy, and he's 16.2...and with an obviously hot temperament. I'd give him an 8 on the 0-10 scale. Dunno what breed. Not an Arab, not a warmblood, probably not a QH...my guess is TB.
The in-hand showing was going on, and that horse towed his rider, who was a kid maybe 11 years old into the ring, up and down for the showmanship, and back out of the ring. Later I saw them ride...in the BEGINNER Age 7-12 class...yes, a gigantic hot-tempered horse in the Beginner walk-trot class...and as soon as the riders were cued to trot, this massive creature burst into a canter. Rider couldn't control him AT ALL. Fortunately, no one was injured.
I just thought it was incredibly sad. Rider savagely overhorsed, trainer or parent or whatever violent and abusive. People hitting horses in anger. That horse could probably be a great horse for a more accomplished and patient rider, but as it is, I reckon it's going to be developing a lot of behavior problems and getting handed around to different owners as uncontrollable.