Wyong shire Council v shirt (1980)146CLR40 Paul Maurice Nagle v Rottnest Island Authority F.C. 93/016(1993) Aust Torts Reporter 81-211(1993) 112ALR3931993)67ALJR426 Trade Practices Act section 53(g)Wyong Shire Council v Shirt (1980) 146 CLR 40 Paul Maurice Nagle v Rottnest Island Authority F.C. 93/016 (1993) Aust Torts Reporter 81-211 (1993) 112 ALR 393 (1993) 67 ALJR 426 Trade Practices Act section 53 (g)