You tell your kids all the time not to talk to strangers. Once you finish teaching them this lesson, you probably think you can rest easy since they’re now 100% aware.

Sadly, they’re not. Comedian and social experimenter Joey Salads, whose work usually involves pranks, took a serious turn to show parents how easy it can be to manipulate a kid into going off with a stranger. His social experiment proves that there’s so much more we can do to protect our children.

Check out his experiment with three different kids: