5. The cleat to which the line was secured was attached to the inward side of the port bulwark forward of the middle of the barge, at about the point where the bow of the barge commenced to curve inwards. Along part of the side of the barge was a rubbing strake, which was intended to protect the sides of the vessel and which ended about the area in which the cleat was placed. Some time after the accident another bollard was installed about five feet or so aft of the existing bollards and cleat. The installation of the new bollard was not effected in consequence of the accident suffered by the respondent. It was intended to be used for the attachment of permanent lines when the vessel was in harbour during weekends, particularly in bad weather, when it might be desirable to use two bollards instead of one. It was installed after another vessel, not owned by the appellant, had sunk when a bollard was torn out of its deck. However, when Mr McDonald, a consulting engineer who gave evidence for the respondent, observed the new bollard, which he thought had been in position at the time of the accident, he formed the opinion that a person standing near the new bollard would be less likely to have his arm caught between the top rail of the deck and the jetty than a person standing near the cleat. This is because the side of the barge slopes inwards as it comes up from the rubbing strake at a greater angle at the new bollard than at the cleat, so that the horizontal distance from the outside edge of the top rail to a vertical line dropped down to the rubbing strake was 290mm at the bollard, but only 65mm at the cleat. Mr McDonald accordingly concluded that an angular change of 15 would be necessary to bring the topmost part of the bulwark in the area of the bollard into contact with another surface, whereas in the area of the cleat a change of 2.5 would be enough. In his opinion, the risk would be virtually eliminated if the person tying up the barge was standing near the new bollard. There was some evidence that it would have been practicable for a person standing in that position to tie up the vessel. The respondent himself said that the new bollard would be a much more secure and effective place to moor the vessel than the cleat and the master of the barge, Mr MacLean, said that the bollard could be, and sometimes was, used for berthing to unload cargo, although he was not asked to elaborate on the matter.