April fool!

While at work, right in a quite important meeting of some sort, Rick's mobile phone rings. Anxious because he knows what might be the reason behind this call, he answers the phone, only to jump up some seconds later, breathlessly take his coat and hat, squeaking some excuses to his smiling boss, hastily making for the exit of his office building. He finds a cab, jumps in and tells the driver to hit it, right to St. Helens Hospital, where his wife was delivering their first baby.
Arriving at the hospital, he runs to the front desk, gets his directions and jumps up the stairs to the maternity ward. Right as he is coming out of the stairwell, he sees a nurse coming out of the delivery room at the end of the corridor, with a tiny bundle in her arms.
As he is immediately sure this must be his baby, he starts beaming and swiftly walking towards the nurse. Noticing him, she also puts on a radiant smile and casually breaks one of the baby's tiny arms.
Rick stops mortified, not able to say anything, when the nurse again smiles her fantastic smile and starts twisting the small leg peeking out of the bundle. She continues to take the baby's head, acting as if she wanted to break the little's neck. Rick, coming back to his senses, starts running and screaming, only to see the nurse snap the thin neck while winking and smiling.
"Oh my god, what on earth are you doing to my baby?!", he screams in horror, ready to attack her, before she stops him with a contagious little laughter: "April fool!", she says, "It was already dead."