Kuu, are you trying to say "as I think he HAS proven that he is not a fit dog for the job."? You have some double negatives in there, and I've been trying to figure out exactly what you meant! When I read your latest post, it finally made sense - I think it was in that "has" "hasn't" that was making your post a little unclear.
Just wanted to check, so I understood what you were saying!
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Cats know what we feel. They don't care, but they know.