Unconscionability defences to guarantees do not require proof of predatory conduct in all cases; the authorities post-Kakavas (Thorne, Stubbings, Nitopi) establish that constructive knowledge may suffice and passive acceptance of a benefit may constitute unconscionable conduct.
The full text is available to signed-in members, including the 6 later cases that cite this judgment.
1 of the 6 citing cases carry a classified treatment. How each court treated it is available to signed-in members.