To be fair these workers are harnessed, it's just a shame the ladder isn't quite long enough
![Safety blunder](https://d2vhdk00tg424t.cloudfront.net/MediaLibrary/s3/ubm-library/web/u/s/t/safety_cola.jpg)
Perhaps the guy at the bottom is trying to change one of the light bulbs? Thanks to Stuart Bond for taking this photograph of two Shanghai workers.
He says: "I guess the ladder was suspended from the lid of the bottle - makes you wonder how the next length will be attached!"
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