I have once, back in college when I visited the Equestrian Center and was put on a horse named Petey. When I first saw him, he was chewing on an orange cone. That about sums up his personality. (=D) He was pretty lazy that day, and didn't really feel like walking in a circle (or doing much walking at all). He got a bit more excited with trotting, though. I remember wishing I had gotten to ride Red, another horse, because he seemed very fond of me while we were waiting around afterward.