Can you tell what it is yet?
When I arrived at the office this morning, I noticed an odd smearing on one of the windows. I thought at first it was Ruaridh's nose juice, but it was far too high up for him and on a window he never looks out of.
Then it struck me what it was. Can you tell?
(I apologise that even with G and his sheet of black mounting board I was unable to get a very clear shot of it, but it is still be legible.)