Mr and Mrs Murphy operated a hotel at Charleville. Their daughter was married to a Mr Hogan, who was the owner of a restaurant in Charleville. The Murphys owned a truck that was in need of repair. Mr Hogan owned a semi-trailer. The parties agreed that if Mr Hogan took the truck to Brisbane on his semi-trailer, he could hire a driver to drive the truck back to Charleville loaded with goods for Mr Hogan's restaurant. Unfortunately, the truck was damaged owing to the negligence of the driver. The Murphys want to sue Mr Hogan for the cost of repairs to the truck. Would the Murphys be successful?