When Lena agrees to help her neighbor Karen by driving their daughters to school, she thinks it’s just a one-time favor. But as Karen’s requests become a daily expectation, Lena starts feeling used. When Karen refuses to return the favor with a blatant lie, Lena decides to teach her a lesson.I used to think I was one of those people who could just go with the flow, you know? Avoid drama, and keep things pleasant. But that all started to change the morning Karen knocked on my door.”Lena, hey! I’m so sorry to bother you this early,” Karen said, flashing that overly sweet smile of hers. I was still in my pajamas, trying to coax my brain into waking up with a cup of coffee. Sophie, my eight-year-old, was upstairs getting dressed for school. The last thing I expected was a surprise visit from the neighbor. “No bother at all, Karen,” I replied, yawning as I opened the door wider.