@SteveBellovin @moz @Asbestos @tomjennings At the SEPTA 30th Street station in Philly, there are these black balloon-like objects hanging from the rafters of the trainshed. They have a pattern that makes them look vaguely like an abstract giant eye. Apparently that’s enough to make some birds think there’s a big predator watching and move on to friendlier real estate. I wonder if the camera has a similar effect.