Apparently, convincing children they're invisible is the greatest new prank. I saw my first video of it last night, and I admit I was (metaphorically) rolling on the floor. I had intended to create this thread with a mock provocative title, something like "Child abuse can be fun!", and linking to one of the videos.
But as often happens in such situations, somewhere between the time I got the idea and the time I created the thread, that analytic voice in my head that loves to suck the life o