2-Year-old Girl Goes Ballistic When Her Baby Sister Is Born

And so begins a sibling rivalry.

Meet Piper. She's a 2-year-old girl who's not pleased one iota that she has a new baby sister. She makes no bones about her feelings while her father tries to talk to her.

You could say this is the prototypical case of the "terrible twos."

Hey, it could be worse. Her mom could've had twins.