Background: When my oldest nephew was about 4, he came up to his dad with his hands cupped over nothing. He was pretending. He asked, "What do you think I have in my hands?" His dad reached out and pretended to picked up something and popped it in his mouth. His son immediately began crying and said "You ate my scriptures!"
Last night, my girls were pretending in the kitchen. Angela was playing with things when she brought out her hands as if she was carrying something. Jamie reached out and "grabbed" it and carried "it" off. Angela started crying. Daddy got in on it and tried to take it back and give it back to Angela. All this is pretend. Jamie through herself on the floor because Daddy had taken the pie away. We couldn't help but laugh. All this was because of an imaginary pie.