Taylor assaulted his wife, who then took refuge in Ms. Harrington's house. The next day, Mr. Taylor entered the house and began another assault on his wife.
Taylor's wife knocked him down and, while he was lying on the floor, attempted to cut his head open or decapitate him with an axe. Harrington intervened to stop the bloodshed and was hit by the axe as it was descending.
The axe fell upon her hand, mutilating it badly, but sparing Taylor his life. Afterwards, Taylor orally promised to compensate Harrington for her injury. Is Taylor's promise enforceable? Explain.