I know someone when he was in Chedar, The rebbe said it was important to keep your finger on the place on the Daf.
If for some reason you took your finger off the place and the rebbe saw it, He would take out his ruler and slap your hand with it.
Do you think this person developed a love of learning because of this rebbe? What do you think he thought of Gemorah, knowing everytime he moved his hand he would get slapped.