(All being yelled from upstairs)
Lily: Mom, can I wear short sleeved PJ's?
Me: No, it will be cold tonight.
Lily: But did you go outside? It's warm.
Me: I know, but it will get cold tonight because it's winter.
Lily: Did it get cold at night last winter?
Me: Yes, it did.
Lily: Fine! I'm not talking to you!!!
Oh, the rationale of a sassy 4-year-old!