Sorry the picture is a little unclear. I took this with my mobile phone on my way to work.

These guys are standing at the top of that little building/gate house with sledge hammers, demolishing it from the top down. Every now and then they knock off a big bit of concrete which they hurl down to the ground below - just missing the guy casually sitting there in his cane chair. Maybe he's the foreman - hopefully not the workplace health and safety inspector!!!!