That is some quick damned thinking because all that horse wants to do is win the race -regardless of what he was dragging behind him or how many legs he was on to do it. Bless him for saving that horse from injury.
He is total garbage! Quick! Hide him on my trailer (Petstorejunkie).
This is why I always laugh when someone suggests that driving would be a great option for someone who can't ride. It is, but when things go wrong driving, it can be exponentially worse for the driver and the horse.