Spotted earlier this week in central London, a boom lift lifted by a crane onto the concrete floor - now roof - of a building that has been partially demolished.
Given the way the building was reportedly taken down, the site engineer must have been surprisingly confident in the structural integrity of the remaining structure. Especially given the piles of debris still in place.
A tricky one this since we lack the full details - maybe the structural integrity was calculated precisely? but certainly as our correspondent suggests it looks like one for our Death Wish series.
I'd be saying no thank you, hard pass