The not pawing is an excellent thing to teach - my other dog Angus is a therapy dog but he can't do therapy in nursing homes because he loves to give his paw and with the thin skin of the elderly it's an accident waiting to happen. Our Saint Bernard puppy Guinness has been taught not to paw because he'll become a therapy dog when he turns one, and because I have a baby, toddler and preschooler that are at his giant paws' eye level when he is sitting. How I taught not to paw was to, whenever he would raise his paw, grab it and say firmly "OFF!" He would pull his paw back when I put pressure on it but I would wait a few seconds before letting go. If he tried to paw again, I'd grab his paw, press firmly and say "OFF!". When he tugged for his paw back, wait a few seconds before letting go. I'd then praise him when he would not paw (you can see them registering the cause and effect in their heads). It only takes a few times doing this and then it becomes a non-issue.