This in particular seems like what Bar was trying to tell me yesterday:
"You will not learn to train a horse until you have been humbled by many horses. Until you accept this, you will continue to make the same mistakes and continue to only work with “stubborn”, “stupid”, or “problem” horses. The most difficult horses have the most to teach you… but you have to let them."
"AND," he says, "you'd be bored with a push-button horse anyway. Bored, bored bored."