Yep, that's horse....flight or fight animals with flight being their choice. Glad his sensible mind is well trained & strong. My first horse was an OTT TB who was already 16. The dressage arena & the jump arena had pine trees at one end. Lol....he was sure there was a pine tree ghost in there every time we rode by but totally sensible every where else until it came to water on the ground. Glad you had a great ride