I, at the very least, feel you. All three of my dogs are on completely different wave lengths. My mutt is ridiculously smart. There isn't any thing she can't be taught. In just watching me from the sidelines attempting to teach our Elkhound to bow, she just did it. No luring, nothing. I just said "Jack, bow" while looking at my Elkhound, and she did it.
My Elkhound? Big dumb. He's older and spent a lot of his life outside, so we give him the benefit of the doubt, but teaching him any thing is like pulling teeth. He at least learns eventually, unlike my dachshund, who I am convinced is mentally retarded. We work with these guys every day, and he still can't even sit on command. We'll think he's got it, and then twenty minutes later I'll tell him to sit and he just stares at me.
My Elkhound? Big dumb. He's older and spent a lot of his life outside, so we give him the benefit of the doubt, but teaching him any thing is like pulling teeth. He at least learns eventually, unlike my dachshund, who I am convinced is mentally retarded. We work with these guys every day, and he still can't even sit on command. We'll think he's got it, and then twenty minutes later I'll tell him to sit and he just stares at me.