With us, it was "Be in this house before the sun goes down."

A cousin was out with me and my Gran once. She'd taken us on a rambling exploration of the neighborhood. I was five or six and he was around seven, I think. Gran said a she paused to watch the beautiful sunset with us. My cousin abruptly sat down on the curb bawling. Gran thought he was hurt or sick. But, when she tried to find out what was wrong, he cried, "Momma told me to always be home before sun goes down… and there it goes!" LOL