Thanks. I don't work with him anymore, wish I still did. Despite his less than pleasant disposition I fell in love with him and the breed in general. He was so willing to learn! Once he figured something out he was great. His owner took him back home after I was done working with him. Very long story. Too long to get into here. So hopefully his pasture life is stress free, if it was ulcers. The vet did a lot of blood work on him. She was puzzled.
"And somewhere in the northwoods darkness a creature walks upright. And the best advice you may ever get is: Don't go out at night..."