Letter Carrier Jillian Guerrero was recently delivering mail in Geneva, NY, when she was approached by a customer in distress.
The woman, who was sweating profusely and shaking, said she was having a heart attack and needed help.
Guerrero immediately called 911 and rendered first aid to the customer, who said she was in extreme pain, then fainted into her arms.
The woman regained consciousness by the time paramedics arrived and took over.