Kenny Willis and his neighbors, Rick and Joyce Taylor, were good friends. Rick helped Kenny repair his truck and Kenny cut the Taylors’s yard because they did not own a lawnmower. One day, while the Taylors were out, Kenny began to cut their grass. Joyce returned home and saw what he was doing but made no effort to stop him. Kenny negligently ran the mower over a stretch of gravel. A piece of the gravel shot through the air and struck Jackie Gill in the eye. She filed suit against both Willis and the Taylors.

Does a principal-agent relationship exist among the parties?

Who is liable to Jackie Gill?