Remember, this is stated to be happening in Belgium!

But the unrolling sign is in English, not French or Walloon. So it's not aimed at the locals.

And MichaelR's and LB's comments would only make sense if it was a truly unexpected and "real" event, whereas it's obvious that everybody in the area HAD to realize that it was a planned production, with the cameras, the police and traffic barriers that had to be there. And even if it could have been pulled off (with hidden cameras and no police or barriers) without tipping the secret, that would only have worked once, and it's clear that it was done several times in order to get the various button-pushers and other mutually exclusive participants that are shown.

But, given the classical "willing suspension of disbelief", the video is GREAT!

Dave Oesterreich