Have you seen one of these?
Saturday, I had Ashke tied in the same spot he is usually tied in, while I groomed and got him ready to ride. One of my friend's had her Friesian in the crossties half way down the row, and we were chatting as we got ready to ride. There was a portable saddle rack hooked over the rail next to where Ashke was tied, but it was turned away from him, with the pokie part facing into the feed stall. I went into get my saddle and heard my friend yelling whoa. I came around the corner and saw Ashke on his hind feet, pulling back, with the portable saddle rack attached to his face.
He must have lowered his head and hooked the back hook onto the side of his halter.
I dropped the saddle and said, "Ashke, whoa. Stand."
He dropped down, and although he was trying to stare threateningly at the object attached to his cheek, he stood. I calmly, but quickly, walked out and put my hand on his shoulder, using my other hand to steady the rack until I could get it unhooked. He was shaking and snorting, but trusted me to take care of it. I put it out of harms way and then spent a little bit of time running my hands over his neck and back, telling him how proud I was that he listened and waited for me to save him. I told him over and over what a good boy he was, while I waited for the adrenaline shakes to stop.
Then both he and the Friesian (who was alarmed by not overwhelmed by Ashke's reaction) got peppermints for being great horses.
Teach your horse the command "stand". That is like the fourth time it has saved either me or Ashke from a trainwreck. And be careful with those saddle racks. I had no idea he could do that to himself with one.