¶1Plaintiffs Davis sued defendants Riley to quiet title to a narrow strip of land between their homes at about 590 South on First East Street in Bountiful. The Davises base their claim on a recent (1966) survey according to the recorded deeds; while the Rileys rely on an established physical boundary, which traces its existence on the property back for over 45 years. The trial court granted summary judgment for the defendants Riley.. The plaintiffs Davis appeal, contending that the summary judgment should be reversed and judgment granted for them, or in the alternative, that there must be a trial on disputed issues.
¶2Both properties were part of a tract of land owned by the plaintiff’s grandfather, *326Daniel K. Davis. While he still owned it he built a fence running from the street (First East) westward along the line which the Rileys now claim as the boundary. It was sometime after this fence had been constructed that, in the year 1920, Grandfather Davis sold and deeded the land on the south to the Rileys’ predecessor, Leonidas Riley. The respective properties have passed through mesne conveyances, the detail of which is not important, in the same families down to the present owners. The original need for the fence and the fence itself have long since vanished. But through its remnant posts and other evidence it is shown that it ran on a line parallel to and a few feet (varies from 4.5 feet on the east end to 5.2 feet on the west end) north of the survey boundary line as specified in the deeds.
¶3In addition to their reliance on the record title to the disputed strip, the Davises contend that the fence line, the few feet 'north of the record boundary, was built by their grandfather merely as a barrier to keep his cows out of his garden and orchard. They argue that it is neither a fact, nor is there any proof that it has ever been regarded as a boundary line; that until this trouble developed the parties have always been friendly; that they have never been concerned with the boundary line between them; and that such use as the Rileys have made of the few feet north of the true boundary has been a friendly and permissive use. As opposed to this, the Rileys contend that they are entitled to the ruling as a matter of law that the fence line is an established Boundary by acquiescence,
¶4At a hearing on a motion for summary judgment the trial court indicated that certain evidence relied on by the plaintiffs as to conversations between the parties’ respective predecessors, Daniel K. Davis and *327Leonidas Riley, which evidence was purposed to show permissiveness of the use by the Rileys, was inadmissible because of the dead man’s statute,
¶5Upon a further hearing of the motion for summary judgment the trial court made this comment about the affidavit of Kelly Davis:
There is no question in my mind that had this [affidavit] been presented at the hearing, the summary judgment would have teen denied on the basis of what Kelly Davis presented … It would have raised that question of' fact, but coming late as it does … does not present a sufficiently strong position to justify the reopening of the question once submitted. (Emphasis added.)
¶6We agree that this affidavit appears to raise an issue of fact as to whether the Rileys’ use of part of the Davis property was merely permissive; and that if this were proved, that would preclude the establishment of a boundary by acquiescence.
¶7We appreciate that when a case has once been submitted to the court whether he will allow the presentation of further evidence is ordinarily a matter of discretion. However, even though where an action is discretionary there is necessarily indulged considerable latitude of judgment, this does not mean unrestrained power to act in a capricious or arbitrary manner which may produce an inequitable or unjust result. The word “discretion” itself imports that the action should be taken with reason and in good conscience, and with an understanding of and consideration for the rights of the parties, for the purpose of serving the always desired objective of doing justice between them.
¶8There are other considerations present in this case which suggest that the ends of justice will best be served by the trial court *328considering the supplementary affidavit, which will require the next logical step, the granting of a trial. Although the trial j udge had previously announced what his decision would he, no formal judgment had actually been entered before the plaintiffs filed the supplementary affidavit. Therefore, giving it consideration would involve no serious procedural difficulty or inconvenience. Finally, the court had at the first hearing rejected evidence of similar import from another source, so there is at least some degree of excuse for the plaintiffs belatedly filing the other affidavit in support of that phase of their evidence.
¶9It appearing that there is dispute on issues of fact which must be resolved upon a trial in order to correctly determine the boundary line between the properties of the plaintiffs and the defendants, the order granting summary judgment is vacated and the case is remanded for trial. The parties to bear their own costs on appeal.
¶10. As to the requisites to the establishment of boundary by acquiescence, see Fuoco v. Williams, 18 Utah 2d 282, 421 P.2d 944; Fuoco v. Williams, 15 Utah 2d 156, 389 P.2d 143; King v. Fronk, 14 Utah 2d 135, 378 P.2d 893; Brown v. Milliner, 120 Utah 16, 232 P.2d 202; Tripp v. Bagley, 74 Utah 57, 276 P. 912, 69 A.L.R. 1417.
¶11. See 78-24-2 U.C.A.1953.
¶12. That this contention if proved would defeat a claim of title by acquiescence see the cases cited in. footnote 1 above.