Christina FitzSimmons used to have trouble sleeping.
The doors of her York County home are armed with alarms and double deadbolts. The windows raise only three inches above the sill.
Still, until about two years ago, FitzSimmons was restless.
It wasn't who might get into her house that she worried about; it was who might get out.
FitzSimmons is mother to two adventurous, autistic boys: Connor, 5, and Kevin, 4.
Her curious sons often tried to wander from her, and she was consumed by the fear of life's many "what if" moments.
What if Connor unlocked the front door and ran toward the river?
What if Kevin heard the buzz of a lawn mower and...