In several reposted parenting warnings, “Mama Fiona” is described as a stranger who poses as a friendly neighbor or an emergency contact. The story warns that a child might receive a FaceTime call from “Mama Fiona” claiming to be a substitute babysitter sent by the parents. The moral of the anecdote is to teach children never to accept a FaceTime or open a door for someone they don’t recognize, even if the caller uses a familiar-sounding name.