The lesson here is, I hope, obvious: If you need to ship a baby, make sure the box has a clearly-written label reading "CAUTION: LIVE BABY INSIDE" so no one has to wonder.
Air holes would be nice, too.
AFTERSNARK: I'm amused by the scenario to be pondered here:
"If you thought there was even a small chance that a baby was inside a box, wouldn't you treat that box gently, just in case?"
Well, no ... no, I wouldn't. What I'd do is I'd open the fucking box and see if there's a baby inside, that's what I'd do!! And then I'd go looking for whoever the fuck might be putting babies inside boxes, for fuck's sake!!
Then again, that's just me, because I'm not retarded.