I have a new horse and he is hesitant to load but I can usually get him loaded but unloading has become a nightmare. I am alone when I load and unload so problems can come up very suddenly that I can't easily figure out how to fix. He gets very anxious to get out of the trailer when we have reached our destination. If I open the door of my straight load and undo the butt chain he throws himself backward and pulls until he breaks the tie attached to his halter. Last time we unloaded I stepped in and unfastioned the tie on his halter and before I could get back to open the door or undo the butt chain he threw a fit and literally tore the inside of my tailer all to heck. He tried coming out the escape door at the front between the two "stalls" and tore it off the hinges breaking all the bars and then tore out the divider and came charging out. If I don't tie him he puts his head down and tries to crawl out under the divider. I don't know how to fix this and now I am even nervous to try loading him. The trailer has to be repaired before I take him anywhere again but if I want to ride him other than on the busy highway I have to trailer him to where the trails are. Any ideas?