That “Sweet Little Mountain Horse” from the video below was put on a test. Ranchel Bonine has an amazing seat is all that we can think of while watching the video footage. She lost her stirrups when the horse started bucking uncontrollably, but manage to hung on tight.
It seems that she was ready for the bucks, according to her leg position and body. She did get a little mad, so you might want to turn off the volume at the end of the video.