The “10 hours of walking” trend has become a popular way to reveal the scumbaggery of much of the human race; from a woman getting harassed on the streets of New York to a woman walking around in a hijab, it’s clear that people love to shout hostile, aggressive things at other people just because they can.

Jewish journalist Zvika Klein of the Israeli news outlet NRG recently explored this phenomenon when he put on a yarmulke and walked through the streets of Paris for 10 hours.

After a Jan. 9 attack on a kosher supermarket in Paris — in which four Jewish people were shot — Klein decided to use a hidden camera to film himself walking through different neighborhoods, including predominately Muslim ones.

“Given the tensions in Paris, which is still reeling from a wave of terrorist attacks (including the murder of Charlie Hebdo magazine journalists), I was assigned a bodyguard,” wrote Klein on NRG’s website.

Throughout the course of his 10-hour walk, Klein was spat at, called a “homo” and insulted in many colorful ways, some of which implied violence.

“Areas known as tourist attractions were relatively calm, but the further from them we walked, the more anxious I became over the hateful stares, the belligerent remarks and the hostile body language,” he wrote.

In one “mostly Muslim” neighborhood, Klein walked into an enclosed marketplace, where one merchant yelled, “Look at him! He should be ashamed of himself. What is he doing walking in here wearing a kippa [yarmulke]?”

“What do you care? He can do whatever he wants,” another, “seemingly unfazed” merchant answered, according to Klein.

Some areas were more hostile than others, however. According to Klein, in one public housing neighborhood he came across a mother and her little boy, who asked, “What is he doing here, Mommy? Doesn’t he know he will be killed?”

With tensions in Paris boiling over after the Charlie Hebdo attacks and other incidents, Klein’s video is a sobering reminder that anti-Semitism is still alive and well even today.