You're standing near the commode. Turn left and exit through the open entrance. Again, turn left and exit the washroom. Now walk through the hallway, passing through an open door onto your left, till you reach the end with three portraits mounted to the wall. Turn left and walk forward. There's a staircase and an open door. Walk into the open door beside the staircase, which is a laundry room. Go stand near the glass door. This would be your end point.