Repost of an earlier post:

That was weird.  I heard tiptoeing and a door quietly locking.  I tiptoed to my parent’s room and found their door locked!  Their door was never even shut except around Christmas.  Mother must have gotten scared and locked it.   Assuming the worst, I pounded and screeched, “Mama!  Mama!  Your door’s locked. Help!  I can’t get in!!!”