Have you ever had a phalanx marching down on you, clubs drawn, sunglasses reflecting, helmets shining, boots stomping?
I have. (And I've been tear gassed and clubbed - not a pleasant experience.)
Now for my real subject - adhesive transparent tape, particularly double sided adhesive, as a form of slowing the advance of an unfriendly, perhaps armed, perhaps uniformed people.
Have you ever walked a convention floor before the carpets are put down? They use an extremely sticky double sided tape - it will pull your shoes - or boots - off of your feet.