In a case where damage is capable of precise proof, and a plaintiff fails to produce such proof, no assessment (or a nil assessment) will be made (Sunley and Co v Cunard [1940] 1 KB 740, 747; Woodham v Rasmussen (1953) St.R.Qd. 202, 215; Holmes v Jones [1907] HCA 35; (1907) 4 CLR 1692, 1703, 1717; Ted Brown Quarries v General Quarries (1977) 16 ALR 23 37). In cases where some loss has apparently been suffered but the plaintiff has failed to take the trouble to produce evidence that would reasonably be expected to be available, no more than a very conservative estimate of damages will be made (Minchin v Public Curator (1965) ALR 91, 93; Ashcroft v Curtin [1971] 3 All ER 1208; Aerial Advertising Co v Batchelors Peas [1938] 2 All ER 788, 796). This may be contrasted with the familiar exercise of assessing damages upon issues which of their very nature are incapable of precise proof, such as future economic loss, and, quite frequently, past economic loss, where the Courts do the best they can on necessarily imprecise matter. (Malec (above); Chaplin v Hicks [1911] 2 KB 786, 795; , 124; , 438, 447). Even in cases of that kind a plaintiff is expected to place before the Court the essential facts upon which the necessary inferences and projections are to be made. There is no difference in the approach of the Courts according to whether the case is based on contract or tort. In all cases the extent of proof required depends upon the nature of the issue to be proved."