Ratu owns a property with a large backyard that is usually brightly lit at night by floodlights. For months he has asked local teenagers to stop using his yard as a short cut to the bus stop but they have ignored him. Ratu decides to put in a pool. Yesterday, after the constructor had spent the day excavating a large hole, Ratu decided not to switch on the floodlights. At 11 pm Hamish fell into the hole and suffered serious injury. Explain whether Ratu is likely to be liable in negligence?