I broke the legs of the untamed horse with my special mallet
That sounds very cruel. Why would you do such a thing?
It was not cruel at all. Look, now he is safe, he can't run off anywhere.
You thought you were doing the horse favor by breaking it's legs, but, wow, I am distraught to hear about this. Breaking it's legs is painful for it, as you might have damaged it for life. Sometimes owners will put a horse down after it has broken it's leg. Next time be more realistic.
My point was that the horse can't run away now.
I understand that in your thinking you thought that you were protecting the horse by smashing it's legs, but you are just protecting your selfish interests in a very convoluted way. Leave your horses along and simply place them in the corral where they won't escape.