'By contrast, a real danger of bias might well be thought to arise if there were personal friendship or animosity between the Judge and any member of the public involved in the case; or if the Judge were closely acquainted with any member of the public involved in the case, particularly if the credibility of that individual could be significant in the decision of the case; or if, in a case where the credibility of any individual were an issue to be decided by the Judge, he had in a previous case rejected the evidence of that person in such outspoken terms as to throw doubt on his ability to approach such person's evidence with an open mind on any later occasion; or if on any question at issue in the proceedings before him the Judge had expressed views, particularly in the course of the hearing, in such extreme and unbalanced terms as to throw doubt on his ability to try the issue with an objective judicial mind (Vakuta v. Kelly ((1989) 167 CLR 568)); or if, for any other reason, there were real ground for doubting the ability of the Judge to ignore extraneous considerations, prejudices and predilections and bring an objective judgment to bear on the issues before him. The mere fact that a Judge, earlier in the same case or in a previous case, had commented adversely on a party-witness, or found the evidence of a party or witness to be unreliable, would not without more found a sustainable objection. In most cases, we think, the answer, one way or the other, will be obvious. But if in any case there is real ground for doubt, that doubt should be resolved in favour of recusal. We repeat: every application must be decided on the facts and circumstances of the individual case. The greater the passage of time between the event relied on as showing a danger of bias and the case in which the objection is raised, the weaker (other things being equal) the objection will be.'