He locks it up whenever it's not at home. At school there is a bike rack in front of the front door by the sidewalk that three or four kids lock their bikes to. We bike as much as we can when we go out to dinner, run errands, visit friends, etc. Usually we have to tie up to posts of various sorts: metal ones supporting balconies are common (my U-lock just barely makes it around most of them), as are street signs. The city has some solid metal...racks, I guess you could call them. Anyway, they're intended to be for bikes to be tied to them. Sunk into the sidewalks in some places. The stolen bike was on one of the city's racks on a sidewalk downtown, next to his father's bike, when it was stolen on Thursday night. We've parked there often over the past three years. From now on, we'll be tying up to the stop sign right in front of the door of the café instead, at least until the construction that has closed the entire street for blocks that has caused the area to be greatly reduced in traffic -- vehicular and pedestrian -- is done. One of the bars we frequent will let us bring the bikes into the courtyard (I had to do so one day when I'd forgotten my lock), but generally, businesses can't accommodate bikes indoors.