Karlie's Fish Story

Karlie drew this cute fish family.
I ask her about her picture,
she said "there's daddy fish, mommy fish, brother fish, sister fish and baby fish".
Oh, like our family,
she said, "Yes, just like our family, and the sister fish is sad."
So I thought oh she must be trying to let me something. Why is sister fish so sad?
"Because she can't hold baby fish".
Why not?
"Duh, fish don't have arms mom!"
So, I didn't get anywhere, maybe next time.