The small windows in Victorian houses' toilets are vulnerable. Small boys can get into those, rush down the stairs/along a corridor, at the same time grabbing a laptop, tablet or similar the exit quickly through the front door.
Several years ago I had to do the risk analysis on several items stolen from employees' homes in that manner (checking no clients' data had been compromised or user login credentials stolen, etc). I think on one occasion the employee was hosting a dinner party and guests saw the laptop disappearing down the corridor and out of the front door, but were too slow to act (at least that's what I was told).