A YouTube “prankster” named Jack Vale—seems like a nice guy—decided to approach strangers on the street and confront them with information they had disclosed on social media. The results are fascinating, and really drive home how much information can be gathered on people by someone who’s not even trying that hard.

My favorite response? The guy who gets pissed off and, with a total lack of self-awareness, says, “Thanks for invading my privacy.” You can not give up your privacy and then accuse someone else of invading it…

You know what else is interesting, though? To imagine what people’s reactions might have been if an African-American man had pulled this stunt.