What are they doing? Why are they doing it? What happens to someone who catches them at it???
In other news, I was given a gadget for Christmas that you are supposed to attach to your luggage when you fly, and then when your luggage comes out of the plane it makes a noise, or something like that. I don't really know as I very rarely fly anywhere, so it was kind of an odd gift. Anyway, last night the thing started clicking. And it went on clicking. We could not work out how to stop it... clicking.
In the end I became convinced the clicking was probably guiding killer robots from the future to my house or something, so put it in the garden where I could ignore it. It's now sitting in a bush, still clicking. Am not sure what to do next.