The judgment at first instance
8 Sweeney DCJ gave judgment for Mrs Agresta in the sum of $303,551. So far as is relevant to the limited issues on appeal, her Honour's judgment was to the following effect.
9 Her Honour described the focus of Mrs Agresta's counsel's submissions as "using the machine without a guard to prevent a hand entering the hopper or a utensil or chute to allow tomatoes to be placed in the machine without a hand coming near the machine" (Judgment [6]).
10 Her Honour accepted evidence of Mrs Agresta that her Honour described as follows:
"14. Mrs Agresta said she could not see the blade in the machine because it was covered by tomatoes but she knew something in the machine was crushing the tomatoes and she consciously knew that if she put her hand in the machine she could be hurt. She said one has to look and concentrate when using the machine because it is dangerous. She said she was distracted and must have just taken her concentration from the machine when she looked at her niece.
15. She said Pat Agresta has bought a new machine which has a chute to put the tomatoes in so a hand cannot get near the crushing mechanism".
11 Her Honour then referred to a report by an ergonomist, Ms Maria Lusted, that Mrs Agresta tendered. The judge noted that Ms Lusted's expertise was not challenged and that she was not cross-examined. The judge referred to Ms Lusted's evidence in the following passages:
"19. The plaintiff tendered photographs of the machine and the machine was in court and I inspected it. Its appearance corresponded with the photographs. What I have called the hopper is an inverted bell shape with a hole in the bottom through which can be seen a thick screw shaped blade, which Ms Lusted called an auger. Ms Lusted measured the top of the hopper as being 170mm wide, and the internal diameter as 80mm, large enough, she said, to admit an adult hand. She noted the auger has large gaps, which can be seen in the photographs attached to her report. Although Ms Lusted did not measure the depth of the hopper, it appears, from examination to be about 10cm. Ms Lusted observed, and observation of the machine confirms, that there is no feeder tray or other guard on the machine to prevent a hand going into the machine where the auger is. The switch is located behind the motor, inaccessible to someone whose hand is caught in the machine. Ms Lusted's opinion is that the machine presents a hazard in a situation where people are talking to the person operating the machine, it being human nature to look at the person who speaks to you.
20. Ms Lusted's conclusion was that the machine, with an aperture of 80mm, large enough to admit a human hand, presents an obvious risk. She said that the risk of a hand falling into the mouth of the mincer during a moment of inattention is high. She said that the machine should have been used with a tray with a feeder chute attached to the aperture. The diameter of the feeder hole in the tray can and should be designed to be too small to admit a human hand and the distance of the feeder hole from the auger or blade should be long enough so that the user's fingers cannot reach the blade. An electronic system can also operate on such a machine to turn off the power if the tray is removed, to stop the auger from operating when it is exposed. Ms Lusted said a machine with such a tray and chute is available in Australia for $495. She attached to her report a brochure with a photograph of such a machine. The photograph shows a tray atop a cylindrical chute which is affixed to the mincing part of the machine, such that a hand cannot come into contact with the blade or auger".
12 The judge found that there was a foreseeable risk of injury to Mrs Agresta's hand which was not removed by the fact that the machine had been used without a guard or chute, apparently without an accident, for 15 years prior to Mrs Agresta's accident. Her Honour thought that the fact that use of the machine had been limited to the same operators, that is, to the men of the family, tended to lend some support to the conclusion that the risk of injury to Mrs Agresta was foreseeable. Her Honour then dealt as follows with the question of how a reasonable person in the position of the appellants would have responded to that risk:
"22. The question then arises what response did reasonable care require the defendants to make in the circumstances. The defendants submitted that no response may have been reasonable, and that reasonable care by the defendants could not have avoided the plaintiff's inadvertence.
23. The defendants were entitled to expect that Mrs Agresta would take reasonable care for her own safety. She did in her ordinary use of the machine, cupping her hands above the hopper and dropping tomatoes into it. It was when she was distracted by her niece that her hand dropped into the area where the auger was exposed. It is worth noting that Mrs Agresta was using this machine for the first time. She was asked to take on the unfamiliar task of using the machine without any instruction or advice from Pat Agresta. She followed the procedure she had learned from watching him use the machine. It was foreseeable, indeed highly foreseeable, in the circumstances of the family members being jointly engaged in the sauce making exercise that someone would speak to Mrs Agresta while she was at the machine".
13 Having noted that the provisions of the Civil Liability Act 2002 dealing with "obvious" risks (ss 5F - 5H) were concerned only with the existence of a duty to warn of a risk, her Honour reached the following conclusions on the issue of negligence:
"30. According to the unchallenged evidence of Ms Lusted the risk of a person's hand being injured by the auger of the machine should have been obvious to a reasonable person in Mrs Agresta's position. On Mrs Agresta's own evidence she was aware of the risk - it was obvious to her. She said that although she could not see the blade because it was covered by tomatoes, she knew something was crushing the tomatoes and she knew that if she put her hand in the machine she could be hurt, and that she had to look and concentrate when using the machine because it is dangerous.
31. However that does not mean that Mr Agresta did not have to warn Mrs Agresta about the machine when he asked her to use it, as part of his taking reasonable care in response to the risk of injury from the machine. That is because he asked Mrs Agresta to use the machine, with which she was not familiar because she had never used it, without giving her any direction or advice about the use of the machine and care in its use. A warning in these circumstances did not require any elaborate or expensive means; it simply required Mr Agresta to say something to Mrs Agresta when he asked her to take over at the machine, emphasising that she should keep her hands clear of the crushing mechanism at all times, including if she was spoken to, which was not an unreasonable event to expect to occur in the circumstances of the family working together.
32. By failing to give Mrs Agresta a warning and by operating the machine without a guard or chute to prevent a hand from being able to come into contact with the blade or auger Mr Pat Agresta and Mrs Barbara Agresta, as occupiers of the farm, were negligent.
33. If Mrs Agresta had been warned, that may not have prevented her hand from dropping inadvertently into the machine's hopper when she was distracted, so that may not have been sufficient. However if the machine had had a guard, or particularly the tray and chute featured in Ms Lusted's report, the injury could not have occurred because Mrs Agresta's hand would not have been able to come into contact with the crushing or mincing mechanism of the machine. Thus the defendants' operation of the machine in its unguarded condition caused the injury to Mrs Agresta's fingers".
14 The primary judge then rejected a defence of contributory negligence, expressing her conclusion as follows:
"36. The circumstances were that Mrs Agresta adopted a careful procedure for using the machine by cupping her hands above the hopper and dropping the tomatoes into it by opening her hands. When her niece spoke to her and she looked at her to respond was when her hand dropped into the hopper and was caught by the auger. That someone might speak to Mrs Agresta while she was performing her task and distract her would not be unusual in the circumstances of this family gathering to make sauce. In my view Mrs Agresta was taking reasonable care for her safety in her general operation of the machine. Her becoming distracted when her niece called to her for advice and letting her hand drop into the machine amounted only to momentary inattention on her part, not negligence by her".
15 Her Honour then assessed damages. I shall deal with the only aspect of that assessment which is in issue on appeal, namely damages for gratuitous domestic assistance, later in this judgment.