Donovan Brown, an executive surveyor with Gardiner & Theobald, sent in this photo, taken in Camden while he was in a project meeting.

He writes: 鈥淚t was the first of several bad H&S examples I鈥檇 seen this small builder doing. Here he is trying to reach the extractor outlet about a metre from his reach. Pity I didn't get the shot of him in full stretch!鈥