Even so, you can never predict what will happen. Lightning strikes the ground next to you. At least if you're alone, there are fewer legs to get tangled. Less herd behavior. Now I know how ridiculously unlikely that example is, but think about the random things that happen, you can't numb your horse to everything on the planet. Something will spook him/her and it's always best to have a hand on the nearby horses to calm them down. Honestly, you can't control everything. Your confidence is nice, but set yourself and your horses up for success.