It wasn't bad horsemanship, but totally unrealistic. A tv show, can't remember the name. The plot was that there was a top racing horse which needed to be escorted in transit because some people wanted to kidnap it. One of the guys in the escort was portrayed as a tech nerd who's never seen a horse up close. Eventually, the nerd saves this fire breathing dragon-horse by mounting bareback inside the trailer and galloping away along the highway, into the woods, jumping over tall fences... still bareback.
After all was said and done, the owner offered the nerd lessons. Yeah, lady, that guy needs no lessons.
Also, who transports a horse with a bridle?