During an ice storm, a man’s car slipped down an embankment and became lodged against a large tree. The man called a towing company and toldthe company’s manager that the car was 100 feet down the embankment. “That’s lucky,” said the manager, “because our winch only goes 100 feet.” After the manager and the man agreed on a price, an employee of the company attempted to reach the car but could not because the car turned out to be 120 feet down the embankment.
Is the towing company’s performance excused on the grounds of mistake?