I had a real feeling I was going to find a photo on
the day I found this one. I walked down Oxford Street on the
way to work and kept my eyes peeled on the way to Docklands and
back.
I was despairing by the time it was time to go home from work,
but needn't have worried as I found this photo (which is about 2cm
square) on my regular route home.
Honestly, you can't plan these things