While doing a graph in Math with the boys.
Sidge: "This is actually fun."
Sidge was quite upset about how little apple juice Grampa was pouring him into his big water bottle. I explained that it was actually his normal amount of juice but that the glass was just very large. I demonstrated this by taking out a smaller glass and pouring the juice from the big bottle into the smaller glass.
Me: "See! It's the same amount of apple juice that you normally have."
Sidge: "Yeah! I want that glass instead."