Degrees of fun

Niece: (Points to cake on table) You really shouldn't leave chocolate cake just laying around where i can see it. I'm going to steal it and stick my fingers in it when nobody is looking.
My mom takes the cake and puts it in a different room.
Niece: I saw what room Grandma put the cake in. Now I can go stick my fingers in it and eat some.
Me: Well couldn't you just wait until after dinner and then have a whole big piece of cake and then you wouldn't even get in trouble for it?
Niece: (Big sigh) I guess so. But thinking about stealing some cake is this fun (holds arms wide apart), and thinking about having a piece of cake after dinner is this fun. (holds fingers apart a tiny bit)