bye-bye syndrome
n.— «Alec and Cameron are just two victims in what parents and child safety advocates call a growing trend of children being killed and maimed by vehicles—often their family’s own SUVs and minivans—backing out of driveways and parking spaces.…The tragic trend is known as the “bye-bye syndrome,” said Janette Fennell, founder of the Kansas-based Kids And Cars.org safety advocacy group. Children “don’t want to be left behind” when a beloved relative is leaving; they sneak out and put themselves in a dangerous position behind the vehicles where they can’t be seen. » —“Parents put spotlight on deaths of toddlers in ‘backovers’” by Frank Eltman in Huntington, New York Newsday (Long Island, New York) Apr. 29, 2007. (source: Double-Tongued Dictionary)
Further reading
Lucy in Louisa, Virginia, recalls that if her mother was exasperated when the kids were misbehaving, she’d announce I’m going to put you both in a wet paper bag and see who falls out first! This is part of a complete episode.
Related
Nancy in Aurora, Colorado, asks: Is there a better term for one’s adult offspring than childrenor kids. The list of expressions she’s pondered includes adult child, progeny, offspring, man-child, woman-child, descendant, successor...