On Sat, 18 Jul 2009 19:53:53 UTC, "Graham." wrote:

My sister used to teach in a private girls' school in London.
The story goes that there was some renovation being done
to one of the classrooms and a small sealed-off room was
found that no-one could remember. It had obviously been
a store room for a lab and among the things found there
was a kilogramme or so of a soft metallic substance not quite
covered in oil. Fortunately someone there realised how dangerous
the find was, and it was dealt with accordingly.

Can you tell what it is yet?

Not viewed the video, but I'd guess sodium....

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