When the same people who were maniacally pushing and shoving each other at the gate to be the first one on the plane (and push and shove to be the first ones off, the first ones at immigrations, the first ones at the baggage carousel) suddenly become the most gracious and helpful people you've ever met when they see you're travelling alone with a baby, oh a baby, oh es un santo, te ayuda, toma este, pasa adelante, necessitas algo, tenes prioridad etc.... (Just got home from horrific trip vancouver -- LAX -- panama -- buenos aires.)