Good Morning! I'm having a little issue with my horses. They tilt their heads to the inside when I'm riding down the rail of the arena. Sometimes they'll turn, as if they're heading to the middle of the arena, other times, they will just continue looking inside. It's to the point where their necks will be curved towards the inside of the arena. Because they're both doing this, I'm assuming it has to be something I'm doing to cause it. Insight? Advice on how to fix it? Thanks!