Horses aren't nice like pets. You have to be very careful, like with other dangerous beasts, or they will bite you fingers off if you feed them wrong or fatally kick you if you move around them the wrong way.
If they are in a bad mood, they won't hesitate to throw you off.
Horses suck.
But that's not the point. Go suck your horse's cock but shut up with your shitty petitions.