My guy is the same way with anything new and out of the ordinary. They just have to warm up to them. My guys is very treat motivated so I put treats near the scary things and he finds out they aren't so bad after all. I know Cooper's diet has been limited, but you might try putting a favorite (like a pop tart LOL) close to them, maybe a little closer each day, until eventually the treats are on the chairs or Cooper is no longer afraid.
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