This is definitely a heroic act.
An excerpt from the BBC: Keshia Thomas was 18 when the Ku Klux Klan, the white supremacist organisation, held a rally in her home town in Michigan.
Liberal, progressive and multicultural, Ann Arbor was an unusual place for the KKK to choose, and hundreds of people gathered to show them they were not welcome.
The atmosphere was tense, but controlled. Police dressed in riot gear and armed with tear gas protected a small group of Klansmen in white robes and conical hoods. Thomas was with a group of anti-KKK demonstrators on the other side of a specially-erected fence.
Then a woman with a megaphone shouted, "There's a Klansman in the crowd."
They turned around to see a white, middle-aged man wearing a Confederate flag T-shirt. He tried to walk away from them, but the protesters, including Thomas, followed, "just to chase him out".
It was unclear whether the man was a Ku Klux Klan supporter, but to the anti-KKK protesters, his clothes and tattoos represented exactly what they had come to resist. The Confederate flag he wore was for them a symbol of hatred and racism, while the SS tattoo on his arm pointed to a belief in white supremacy, or worse.
Mob mentality had taken over. "It became barbaric," says Thomas.
"When people are in a crowd they are more likely to do things they would never do as an individual. Someone had to step out of the pack and say, 'This isn't right.'"
So the teenager, then still at high school, threw herself on top of a man she did not know and shielded him from the blows.