By definition, C

Off up to Arthur's Seat and Salisbury Crags this evening to hare around like a madman. Oh, and all covered in lights.

This is me about to start my shift, having just taken over from the early session Blue 9 - who kindly snapped this for me. Had I been the only one doing it, I would have fully expected to be shipped off into custody pronto... As there were ~150 or more of us doing it, I reckon we got away with it and made some pretty shapes too.

Not quite the Speed of Light.