im trying to teach my not at all interested dog to hold a dumbbell. I stated by clicker training him to touch the dumbbell with his nose- which took all of 5 mins!), but I'm not sure how I progress this. I waited to see if he would mouth it, but he doesn't. He just throws all the other things I've clicker trained him to do and lies down/chills ets Maybe I should use something softer than a dumbell?