A 17-year-old girl saved the day when a bad situation could have been much worse at a Greeneville gas station on Wednesday.According to a post on social media, when a car caught on fire while refueling at the Pilot gas station on Baileyton Road, a teenaged girl sprang into action to extinguish the situation.The girl pulled the nozzle from the car and placed it back into the pump which, according to the social media post, saved the pump from also catching fire.