My friend Maxxxi tells a little story about this photo, she's got such a good imagination!
Here is the little story:
"The tall street lamp reminds me of a stern victorian policeman....and it looks like he's giving the poor little sign with his back to us...a golly good telling-off and gesturing with his arrow arm....for the naughty sign to move along and be gone from his sight!!! (oh dear i wonder what the little sign got caught doing?)........" ;p
Story continued here, featured the poor little guy's angry mother -- extended story