Related: https://en.wikipedia.org/wiki/Sousveillance

For those somehow actually considering this: make sure to check local laws, might be super illegal or at least inadmissible, (im)morality nonwithstanding. Although just because it's illegal, inadmissible, or immoral, doesn't mean you shouldn't do it of course.

Also maybe don't use the Meta glasses for this, even if you do decide to go for it. Not so sous anymore if you do.