Write a story that ends with the sentence, we were lucky that night

A few years ago me and my sister went to the store late at night to go get some snacks. we spent like an hour looking around in the store and goofing off. finally we got tired and we were ready to go home. we checked out and started walking out the the car, across the dark parking lot. we started getting closer and i felt super uneasy, like i was being watched. i told my sister to hurry and get in the car because i was nervous. we both have anxiety so when i said this it immediately caused her to get worried so we threw the stuff in the car really fast and jumped in. As we were driving away, i looked out the back window and saw a tall man in a mask by the dark spot of the parking lot. if i wouldn’t have said anything who knows what could’ve happened to us, we were lucky that night.