Greenman's wife bought him a Shopsmith-a power tool that could be used as a saw, drill, and wood lathe. Greenman had studied material about the product and asked his wife to buy it. Two years later, while Greenman was using the machine, a piece of wood suddenly flew out of the machine and struck him on the forehead, inflicting serious injuries. Greenman sued the manufacturer, Shopsmith, and the retail dealer, Yuba Power, alleging breaches of warranties and negligence. The verdict in Greenman's favor against Shopsmith was appealed.

1. The court adopted the rule of strict liability in tort. What is the advantage of this compared to strict liability imposed on the basis of implied warranty in contract for the plaintiff and for society?
2. Would strict liability be imposed on the manufacturer if a friend of Greenman's had used the machine and was hurt while using it?