O badly needs to have his roof repaired so he goes to C and asks C to do the job for $2,000. C states that she is not sure whether she can take on the project but that she will do her best. She indicates that she will let O know her availability as soon as possible. O responds by saying, "Don't worry about letting me know. I care about deeds, not words. What I want is for you to get my roof fixed." The next day, C shows up and starts to work on the roof. About an hour after she begins, X shows up and tells C that he will give her $5,000 to do a job for him. C leaves the job and starts to work for X. O subsequently hires Y to fix his roof, but it costs him $3,000. If O sues C for $1,000 (the extra amount that he had to pay Y), the most likely result is that?