"A person who is already feeling bad may feel even worse if they are exposed to an abusive act in, for example, social media," says Johan Waara.
Waara also believes that there may be several reasons why young people do this to others.
"It can be that you are young and naïve, but also that you want to rivet someone," he says.
In the clip above you hear more about how garga snipes can affect young people and what you can do if you are exposed.
SVT has contacted Tiktok about the garga trend – read what the company responds here.
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What is the Tiktok trend "garga snipe?" SVT's reporter investigates Photo: SVT/Tiktok