Why?

Kaylyn has definitely entered the "why?" stage.

Kaylyn: "Mommy, I want to hold Flounder."
Mommy: "No, you can't hold him sweetie."
Kaylyn: "Why?"
Mommy: "Because he's a fish -- he needs to stay in the water."
Kaylyn: "Why?"
Mommy: "Because fish can only breathe underwater."

Kaylyn: "Mommy, I want another snack."
Mommy: "No, no more snacks right now."
Kaylyn: "Why?"
Mommy: "Because it's almost lunch time."

Mommy: "Kaylyn, please pick up your toys."
Kaylyn: "Why?"

Mommy: "Kaylyn, please don't hit your brother."
Kaylyn: "Why?"

Mommy: "Ok, it's nap time!"
Kaylyn: "Why?"

You get the point.