It's actually very difficult to covertly record with a smartphone. You may think you're being sly and discrete, but everyone sees you doing it. You can put it

It's actually very difficult to covertly record with a smartphone. You may think you're being sly and discrete, but everyone sees you doing it. You can put it in some kind of camouflaged spy gadget, but I expect that to be about 1 in a million random weirdos so I don't worry about it. When suddenly everyone has the opportunity to do it with some thing on their face, it's a different story.