This case establishes important principles regarding the finality of proceedings and the limits on parties' ability to supplement their cases after closure of argument. It clarifies the proper interpretation and application of Rule 246 of the High Court Rules, emphasizing that this rule does not grant parties an automatic right to file supplementary evidence after closure, but rather vests discretion in the presiding judge. The case reinforces the principle that parties cannot adjust or "panel beat" their cases after closure, and that concessions made during argument cannot simply be reversed by filing supplementary papers after judgment has been reserved. This promotes certainty, fairness, and finality in civil procedure.