PERSONAL INJURY — action for damages for personal injury under the Australian Consumer Law as contained in the Competition and Consumer Act 2010 (Cth) (“ACL”) as informed by the Civil Liability Act 2002 (NSW) — plaintiff claims damages for injuries suffered while rescuing another diver while on a diving excursion on the defendant’s boat — assessment of expert evidence — credit of plaintiff and of defendant’s witnesses — whether plaintiff a consumer — whether defendant breached ss 60 or 61 of the ACL — interaction of ACL and Civil Liability Act in relation to defence and quantum issues — contributory negligence — failure to mitigate — “good Samaritan” — causation — assessment of damages