The story circulating on the Internet tells of Daisy, a Golden Retriever Guide Dog, whose owner worked on the 101st floor of Tower 1 of the World Trade Center. When the plane struck the tower, Daisy led her blind owner, his boss and about three hundred others out of the building.
Not satisfied, she ran back into the building two more times to lead people out. She suffered acute smoke inhalation, severe burns on all four paws, and a broken leg, but she had saved 967 lives. Daisy was the first civilian Canine to win the Medal of Honor of New York City.
A heroic story, but more the stuff of Hollywood than reality. There was no Daisy, no Medal of Honor of New York City.
However there was a Roselle who behaved the way Guide Dogs are trained to behave. On the morning of 9/11, Michael Hingson was working on the 78th floor of the World Trade Center. His yellow Labrador Guide Dog, Roselle, was sleeping peacefully under his desk when the building was struck by a plane under the control of terrorists.
With his well trained discipline Roselle led Michael through the noise, smoke and rubble of the office to the stairwell to begin the long decent. Once on ground level Roselle remained focused as they continued walking away from the chaos of the building.
When they were about two blocks away, Tower 2 began to collapse. To escape the ash and debris, they started running for the subway. Roselle eventually guided Michael to the home of a friend in mid-Manhattan where they stayed until the trains were running again. They were finally able to arrive home in New Jersey after seven that evening.