City Carrier Assistant David Smith was recently delivering mail on a hot day in Tempe, AZ, when he discovered an injured customer stranded outside her home.
The woman had fallen and cut her face, so Smith carried her indoors, called 911 and applied pressure to the wound until emergency responders arrived.
She later visited the local Post Office to thank Smith.
The woman explained that she has a medical condition that makes her vulnerable to heat exposure, and she credited Smith with saving her life.