Julie Bish, a rural carrier, was recently delivering mail in New Bethlehem, PA, when the sight of a downed mailbox gave her pause.
She soon spotted the apparent cause: an all-terrain vehicle that had crashed nearby.
The Postal Service employee stopped to take a closer look and found a man pinned underneath the four-wheeler, which was still running.
Bish immediately called 911 and remained on the scene until emergency responders arrived and took the victim to a hospital.