Had mine taken out of a bike pen at work, 4pm in the afternoon under a camera. All it caught was the sun and the top of his head. In and out in less than 30 seconds. If we had badge out doors to the pens, it wouldn't have been so easy. A cable lock is junk. Only a U-lock gives me any kind of piece of mind, and I'm still sketchy about it. I lock my bike up on the car roof rack sometimes (if I can't avoid it) and I'm still waiting for the day when some jackass takes the bike with the tray still attached.