The horse

“The horse knew exactly what she was doing. She’d walked this path a hundred times, and she had no more interest in tumbling to her death than I had. She didn’t need me to tell her what to do, and, in fact, the few times I tried to tell her what to do she didn’t much seem to care. I had gotten it all so wrong because I had spent the previous ten years driving cars, not horses. Cars go over edges unless you tell them not to.”
Jonathan Haidt, The Happiness Hypothesis