I believe my horse was abused in his early life. I bought him 3 years ago. He is now 13, and still gets stressed when i groom him. I found he likes to hold things in his mouth and swinging a rope in his mouth when I groom him stops him from becoming stressed. He now smacks his lips together when he is happy around me as though he is talking. Has anyone else experienced this and do they know what he is saying? By coincidence his name is Monty.