[2] On 11 November 2002, the first plaintiff-by-counterclaim, E & N Collins Enterprise Pty Ltd ('Collins Enterprise'), entered into a written lease from the first defendant-by-counterclaim, Kingaroy Mall Pty Ltd ('Kingaroy Mall'), of the area known as Shop 17 in the 'Kingaroy Shoppingworld' shopping centre. The lease was entered into consequent upon Collins Enterprise agreeing to purchase the 'Pumpkins' restaurant, which traded from Shop 17, from Charolles Pty Ltd. On 11 November 2002, the second plaintiffs-by-counterclaim, Mr and Mrs Collins, who are the directors and shareholders of Collins Enterprise, executed a Deed of Guarantee and Indemnity ('the Guarantee'), under which they guaranteed Collins Enterprise's obligations under the lease. (Where appropriate, I will refer to Collins Enterprise and Mr and Mrs Collins collectively as "the Collins'").