https://www.cnet.com/news/youtube-updates-guidelines-to-address-dangerous-pranks-challenges/

"YouTube is home to many beloved viral challenges and pranks, but we need to make sure what's funny doesn't cross the line into also being harmful or dangerous," YouTube said in a blog post Tuesday announcing the update.

The policy clarification makes it clear that YouTube doesn't allow the posting of pranks that make people feel they're in serious physical danger, such as a home invasion or drive-by shooting. It also prohibits pranks that cause severe emotional distress to children -- anything that could leave the child traumatized for life.