In this age of instant gratification and "viral" media, the words 'social experiment' have suddenly become part of the online lingo. The first time I recall hearing these words were back in 2008 when The Dark Knight had released. Yes, the Joker's social experiment was very different from what we usually see today, but at its core, it's pretty much follows the same philosophy.
You can say or act out anything in public as long as you reveal your hidden camera in the final act. So, check this out.