I used to be a borderline road-rager behind the wheel, but that might be due to where I learned to drive. I'm a little better now, except when some idiot doesn't know they can make a right turn on a red light. "How the FUCK are you an adult all these years and still don't know this?!?!" Whoops.

Not sure how telling her about her mom would help. It might just make her smile at you deviously.