Rio has always been the type to tease or frighten the foals, as when he was a young colt he fell for a lot of stories. When he was a colt it was never funny, but now that he knows the stories aren't real, he thinks it's rather funny. Sometimes at night, foals in the paddock over will come to the fence and try to talk to the stallions. And sometimes they want to hear a story. Rio is well aware that his face is greying because he is a grey horse, but he likes to tell the foals otherwise.

One night, when the foals asked for a story, he really didn't know what to say. He had told them all he knew, or so he thought. As he went, he made up a story. "Well, one night, when I was around your age, I slipped through the paddock fence and decided to go on a stroll. As I walked further on, I realized I was deep in the woods. I wasn't sure where I was so I simply kept walking where I thought was the way home. I didn't know it at the time but I was only walking deeper into the woods. Every small noise, from my own hooves to a bird scared the life out of me. Eventually I started running. Lots of things were becoming blurred because I was running, so I wasn't sure everything was really what it looked like. I was getting tired and my eyes closed just a bit when I ran into something. When I looked up, I caught a glimpse of a horse with snakes around it's head. I turned and bolted blindly, as fast as I could. Some time later that night when I finally got back to my mother, she didn't recognize me. Apparently, my face had turned grey. Since then, it keeps growing slowly."

After he tells his story most foals tend to ask a lot of questions, like "Does it hurt?", "Were you scared?", or "How come its only your face?" Rio often answers in the most heroic way possible. He likes to tease the foals and scare them at night by taking long strands of grass and pretending they are snakes. In the end, its all just fun. They'll grow up and realize it was never real some day. Rio just can't wait to see their reactions when they are two years old and he has greyed even more.