lol Jill.. you crack me up! I think it's typical bored basenji behavior. remember… a TIRED dog is a GOOD dog. or a crated and occupied dog can also be a good dog... so you may need to provide some new toys. I rotate my dog's toys (tough toys that last, like KONG, Squirrel Dude, nylabones, treat ball, etc...) then when I change it up - he THINKS I got him a NEW toy, when in fact, I've just hid it for 2 weeks. This method keeps a bit of $ in my wallet.
also, your dog is 9 mths... he's entering what I lovingly call "the idiot phase". they act up, act out, get into trouble, test you, and conveniently "forget" their training... just stick to your guns, provide outlets (toys & exercise), and be consistant with training (this includes crate training and verbal training).
some quick things around the house that make GREAT toys... paper towel tubes... fill w/ kibble, bend the ends inward to close tube - let dog destroy it to get kibble. Carrot sticks are also GREAT (and healthy) chewies and they help to clean the teeth too! empty tissue boxes make fun "treat dispensing cubes". I found it satisfies the need to chew, destroy, and play... and keeps the sofa safe.
I hope this helped.