Alec Lobb v Total Oil [1985]

Court of Appeal did not dispute first instance judge’s
assertion that three elements necessary for equity to intervene in an
unconscionable bargain:
1.  One party must
be at serious disadvantage, eg through poverty, ignorance or lack of advice.
2.  This
weakness must be exploited by other party in some morally reprehensible manner.
3.  Resulting
transaction must be overreaching and oppressive (not merely harsh).