It's admirable when you're able to admit your faults.
Jenny asks her friend Mario to help her fix her car, but she doesn't realize Mario knows nothing about being a mechanic.
Mario wants to impress Jenny.
Mario tells Jenny he would love to but knows nothing about fixing cars.
Mario hires a mechanic to fix Jenny's car and lets Jenny think it was him.
Jenny appreciates Mario's honesty, and  they become close friends.
Mario feels bad for lying and now always feels awkward with Jenny.