21 Consent is, of course, a state of mind. The question whether a complainant has consented to the act of sexual intercourse will arise in a wide variety of circumstances. On some occasions, the complainant may, by words or conduct or both, signify whether she gives consent: R v Wilkes & Briant [1965] VicRp 64; [1965] VR 475 at 481. On other occasions, the complainant may not say or do anything as, for example, where it is alleged that threats or violence by the accused have so overborne the complainant that she is afraid to say or do anything and submits to the act of sexual intercourse in order to bring a terrifying ordeal to as speedy a conclusion as possible. It is unnecessary, if not impractical, to examine all of the possible combinations of fact and circumstances in which the question of consent will arise. It is sufficient for the purposes of this appeal to notice that, although consent is a state of mind, it may on occasions be evidenced by words or conduct or both. It must also be noticed that such is the variety of circumstances that the issue of consent will, as a general rule, require some further direction: R v Olugboja [1981] EWCA Crim 2; [1982] QB 320 at 332; R v Wilkes & Briant (supra) at 478 - 479, 480 - 481.