This is why I am tired at night.

Because it seems like every single statement I make results in a conversation of this sort:

Me: Sam - eat your carrots.
Sam: Why?
Me: Because they are healthy.
Sam: How?
Me: They help your eyes.
Sam: How?
Me: They help you see better.
Sam: Because if we don't eat them our eyeballs will just fall out?
Me: No. They just help you see better.
Sam: Because if we don't eat them the black part will just get darker and darker?
Me: No. They just help you see better.
Sam: Because if we don't eat them our eyes will get crooked?
Me: No. Just eat them. Please.
Sam: What will happen?
Me: They just help you see better, okay?
Sam: OK.