What's A Round Pen?

Have you ever wondered what the horse must be thinking? Who does this dude think he is? He puts me in this round thing, points his finger, swings something at me and makes this weird clucking sound which isn't real common in the wild! - What the heck is all of this supposed to mean? And you want me to do what?!?

Meet Deuce

Just look at the big black in the holding pen. That is Dad's horse. His name is Deuce! Look at those ears. See how alert he is. He seems to always be alert and curious about everything around him. World, meet Deuce !! Let the games begin ........