I'm Shankar Vedantam and from Hidden Brain Media, this is my unsung hero.

Stories where one person reached out to help another in a time of need.

Hi Shankar, my unsung hero is a Frenchman.

She had given me exactly what I needed in that time.

I was fortunate enough to survive with the help of this man, this doctor, who went out of his way to help save my life.

Today's story comes from Senna Keroomi.

Some years ago, Senna was living in France working on a PhD.

One cold winter weekend, she and her friends took a break and spent the day at Disneyland Paris.

They stayed as long as they could until it was finally time to catch the last train home.

She calls her the tram.

One by one, all of Senna's friends got off at their stops until she was the only one left.

I noticed that the tram was super empty.

There were just two people in there, two guys, both of them friends and I wear the hijabs.

I really stand out.

Whenever I go, I do stand out.

One of the men was in the front of the tram.

The other sat a few rows behind Senna.

She didn't feel like either of them were paying her or her headscarf much attention.

So she put on her headphones and looked out the window.

Something, maybe the switch, like the time between music or something like this when you have the small silence.

I heard something and it turned and I saw this guy just being very agitated.

He was waving his hands and swearing and just pointing in my direction.

...