Bissett v Wilkinson - father and son looking to buy a sheep farm, found a farm being sold that wasn't used to farm sheep, farmer said the land could hold 2000 sheep, farm was bought and no way could 2000 sheep fit, claimed misrepresentation, defence was that farmer was making a statement of opinion not fact. Held, the farmer didn't farm sheep and so it was obviously a guess, and so not misrepresentation