Stopped at home to grab a bite to eat and feed cats. Bike was leaning against the wall of neighboring building next the coach house I live in. Two entrances into the property between the front building and the coach house. Front gate to gangway does not lock but looks like a fence and can not be seen through. Front door was open when I came back down after about a half hour. So I assume someone just happened to walk by. Opened the door. Walked down the narrow gang way between the building around a concrete wall blocking any view from the street even if the front gate was open and through a small court yard between the building in the front and the coach house. Back door was locked. Someone had to have known that the front door is unlocked and have scoped out the place before. This time got lucky. Didn’t lock the bike because I was only there for short time and knew it couldn’t be seen from the street and there is no reason for anyone other than residents of the building to go through that area.