Nature loving girl in a big city

When I was little girl I used to live in the middle of a forest. But still this was the first time I saw a tree straining sap (<- I hope this is right). I was on my way to home back from work and I just had to blip this. I tried to catch a drop falling but my camera was too slow every time.

Location: Satakunnankatu, Tampere FI
Photographed by Suski