I volunteer at a horse rescue. There is a horse that I am now sponsoring (food, medication, etc..) and he is an old horse. He is in his late 20's. I heard stories that he can be a handful sometimes. Yesterday I saw what they meant. Before bringing him into the barn for his nightly food he began to run around the paddock kicking and bucking, blowing out of his nostrils really hard making this noise. Not sure what spooked him or caused this, I am in the process of trying to figure that out. My question is how do you calm him when he gets like that. Another volunteer brought his grain bowl out and held it for him to eat, thinking it would calm him some. I managed to get his halter on and as soon as I opened the gate to put him in the barn he reared up and went to take off running. The guy that I am there with told me to turn him in a circle until he calms down. I am not sure this did much but I did and managed to talk to him and get him to somewhat slow down going into the barn and into his stall. What should I have done differently and what can I do in the future if he gets like this. I will of course try to figure out what started it and prevent that. Thank you all for any help you can give me. Again, I am coming into this as beginner not knowing much about his background and training and not remembering what I learned about horses as a kid.