Description Marcello is an olive grower. He lives a significant distance from his grove and spends four days a week on his block and the balance of the week at home . His neighbours are also olive farmers , but they live full time on their respective groves . Only days before harvest Marcello is struck down with a virus that renders him unable to work on his farm. To add to this , the weather bureau has predicted a minor cyclone will pass through the olive groves. Faced with this warning and concerned for the losses that Marcello's trees might sustain . his neighbours decide to use their machinery to harvest Marcello's olives , as well as their own . They are not aware of Marcello's illness but are surprised by his absence The harvest costs on Marcello's property amount to $3500 . Is Marcello obliged to pay these costs ? A