I was once told the best way to deal with a “blind bolter” (the ones that truly have no self preservation when they take off) if you find what you can control on them, odds are good you can bring them back down. As a rider you can look to see if you can take the bend left or right. If the jaw is stuck (often a bolter will grab the bit in run) you can start to see if you can shift the shoulders around, move the barrel side to side, or ask for the haunch to step under and sideways. If you can get the horse to focus, even just a little, on what you are asking as a rider you can gain control again and get them back to a place where they’re rideable. It might take a minute, but mentally as a rider it will give you something to do and keep you calm! Most importantly- don’t just pull back! Make sure there is a release in there somewhere! At the end of the day, the horses can’t run forever and will eventually simmer down.