DS (3yrs) is a cruel creature. Here's an example from the other day:
Scene: Me and DS sharing some food.
Me: I'm thirsty, I will have to go and get a drink.
DS: Would you like some of my drink Mama?
Offers cup
Me: Oh, yes, thank you.
Shortly afterwards
DS: Would you like another drink Mama?
Me: Erm, ok DS that would be nice, yes please.
DS takes cup from the table, drinks all of the remaining drink available in several large gulps, proffers empty cup
DS: Then you will have to go and make one.
.... Oh.