spiritdogs
I couldn't care less if I ask my dog to sit or lie down for a moment while we are doing barn chores and she chooses to get up to go get a drink, or chew on a blade of grass. However, if I needed precision for obedience competition, I might elect to add sufficient duration and distraction to reinforce what she would need to do for that particular discipline.
OK, that makes sense then. I think it's because I expect a dog to hold the position for more than a moment, and not have the dog suggesting something else of its own initiative. If I put him in a sit, I expect him to sit. If I think it's ok for him to wander to get a drink or chew some grass, then I release him (or wouldn't put him in the sit in the first place). I think what I understand from your training is you enjoy the dog suggesting the next behavior, or finding the next "solution", etc, ie, "thinking for itself". We just have a difference of perspective and objective in training.