Wicks' Campfire Tales: #6 - Warning

WARNING: I strongly recommend that you only read this if you are aged 15 or over.

This one is particularly disturbing. Read at your own risk.
6 - Warning
A woman was driving along very late one night when she noticed her car was nearly out of petrol. Luckily, she saw a sign for a petrol station soon enough and she drove up to the pump. The petrol station was very small, with only one pump, and as she struggled to get the petrol flowing a disfigured old man emerged from a nearby building. He helped her and then asked her for her credit card to pay for the petrol. She gave it to him and he disappeared back inside. He soon emerged saying the card wouldn't work and would she come inside a moment. She followed him inside reluctantly. Once inside, he grabbed her and frantically tried to say something but she hit him over the head with a can of oil that was sitting on the counter. She rushed back out to her car and drove away.
As she looked back to see if the man was following her, she saw some movement in the backseat; a shadow, a swinging axe. It was the last thing she ever saw... The old man had been trying to warn her...