In which case it's "I have control, follow me through"!
Well, clearly you have never been involved in teaching helicopter autorotations or rejected take offs!
Surely, if you have a student who consistently tries to put the control yoke/stick in an inappropriate position, it is better to restrain the input and state "hold it there" (thereby helping the motor reflex memory) rather than grab the controls, say "I have control" and try to debrief the situation after landing, to a deflated ego?