Peter, Gus, Tyrone, and Bob played a round of golf one Wednesday afternoon. After the game they went to Tyrone's house where they were all enjoying some drinks on the deck, discussing their golf games, and watching the sunset. A prize of 5 golf balls was presented to Gus for winning the day's round of golf. He was holding a glass of wine in one hand and collected the balls in his other hand. One of the golf balls fell and bounced down the steps onto the grass. He stepped onto the edge of the first step and overbalanced/slipped. He fell heavily on his bottom, injuring his back seriously. The stairs consisted of two sandstone steps with no handrail. The deck was well lit but the grass area was not.

 

Discuss a possible claim Gus may have against Tyrone in negligence law only. Make sure you consider all the essential elements to establish a plaintiff's claim and also any defence arguments which might be raised on these facts.