Letter Carrier Timothy Grzegorczyk was delivering mail at a Milwaukee apartment building one day last fall when he saw a familiar face in the lobby: an older customer who frequently awaits his arrival.
Grzegorczyk was concerned, though, to find the woman breathing heavily, so he asked her if she needed medical attention.
The customer declined, but after Grzegorczyk boxed the mail and prepared to leave, her breathing grew worse and she frantically asked him to call 911.
The Postal Service employee did so immediately, then comforted the woman, assuring her that help was on the way and he would stay with her.
Paramedics soon arrived to provide further assistance.
The customer recovered from the incident.