When I'm in this situation I shut down the 'training' part of my brain and don't come back after the class is over. It usually results in me falling down a lot for the other guy and going through the motions when I'm tori. In my opinion, training yourself to act inappropriately is suicide. When I say using intention with newer students - I talking about specifically a very slo-mo attack. If they don't move they will feel my attack, but it will be no more than a very gentle 'push' (for lack of a better word). I use this as an opportunity to really, really focus on and train the 'structure' of my kamae while moving slowly. The way I train this it's actually very difficult for me to do (hard to explain in words though). So, it's good training to me as well as my partner. In fact, I won't do anything that isn't good training for both people. In a two hour class, training well for half and poorly for half means I just should have went running instead!