I took this in September 2018, in a small green area behind the Landungsbrücken station near the centre of Hamburg.
I stopped off on my way elsewhere because I knew the area had squirrels and it seemed like it might be a good opportunity to test out the new lens I'd recently bought. I was walking along the path, tracking a different squirrel up in the trees, when suddenly I came around a curve and this cute little thing was right there. I'm not sure which of us was more surprised.
I don't think this is necessarily one of the best photos I've ever taken, but the squirrel's dramatic pose (I can almost imagine it's clutching its chest in shock) makes it one of my favourites.