Surprised to see this little gadget pop into my eye- line a couple of days ago. I noticed the movement first and thought it was a flag or something, but no, it was a little pop-up camera complete with a motorised wiper.
Now I know I may occasionally get up to some mischief, but I thought this level of cross checking was perhaps a little extreme.
Anyway, I sidled over to the window and found the stealthy truck to which the camera was attached. Its here