DS24mos was staying the night at my parents' house. My parents both totally dote on him but my mother especially spoils him.

He would ask for one food item and my Dad would go to the kitchen to bring it to him, but as soon as he would come back, DS would say no and ask for something else ( in other words, typical toddler behaviour).
This went on for a couple of minutes, until my Dad, fed up told him firmly "No, that's IT, I am NOT getting up anymore, and you are not getting that cookie".

DS just shrugs, then gives a cheeky sideways glance to my Dad and simply says "Gramma will get it"