Hi Jon, all the best with your new pup then!! After such a long gap, you're writing history (does one say so in english as well...? Never mind!); I'm looking foreward to see pics of your youngster then. Greetings from Switzerland, Cornelia
Sounds like he is a character. Sorry, I don't have any ideas. Just keep perservering with the toys and teaching him to learn the word "No" and he should respond to it, hopefully sooner rather than later. It is not as necessary to have a loud voice, but it needs to be a low deep voice, more like a growly sound... similar to how his mother or another dog would respond to him!