Thank you all for your suggestions and insight. I thnk I could definately make things work with Riley, especially since now I know how to "get" to him! Treats are the way to go, and lots and lots of praise! He is slightly hand shy, and I am thinking that only negatives were used with his previous owners, unfortunately. Not knowing about the breed, you can make lots of mistakes, since they are so different.
Is Leslie's book recommended for owners, or specially geared to trainers?
I just wish I could have him see how much better things would be if he could leave Uma alone. I guess that's why you all are recommending a behaviorist? It IS bad, he just becomes unreachable when he can get to her, oh, and I didn't mention the mounting, which is constant with her (he mounting her, that is, although, she will mount him if he's muzzled; she senses his dissadvantage)
So, you think it sounds like he is more Basenji than Lab? Therefore train him like one, right?
I will look into clicker training; never read much into it before.
I will try to get him out more w/ excercise-he loves when the kids play Chase Me! with him! Is a Martingale collar the one of choice? He has only a regular one so far. He just chewed his Halti the other day, that seemed like it was going to work well, maybe I will just get another of those…
So many many questions! Thank you all so so much for your patience and please keep the ideas coming! OH! Is tug play advisable with a male Basenji? I know w/ some breeds it isn't...I will update after the weekend! Wish me luck!