ADD AT END OF LAST SENTENCE:  ... and fiduciaries will not be heard to say that they were unaware of their personal interest where it was their professional duty to be aware of such interests: Segrave v Kirwan (1828) Beatty 157; Bulkley v Wilford (1834) 2 Cl. & Fin. 102, 177, 181 & 183 (HL); Bayly v Wilkins (1846) 3 Jones & La Touche 630, 635.