Baby switching. Always check wrist bands.
BackstoryWas reading about the baby that was switched for a few minutes.
That brought back memories. At the hospital a few hours after my son's birth, the nurse brought a baby to me and said it was feeding time. I took one look at the baby and said "That's not my baby. Where's MY baby -- my baby is skinnier and was breech so he's all bruised up. Where's my baby. You need to find him NOW". The nurse compared our arm bands and she starting stammering about being new and practically ran out of the room. I hope that was a lesson she never forgot.