When my 16-year-old daughter Rachel saved up for a sewing machine, her stepmother Karen destroyed it out of spite. I was furious and decided to get revenge. I teamed up with a friend, Jason, an actor with a police uniform, to teach Karen a lesson.

After Rachel told me about Karen’s cruelty, I plotted a plan. The next day, Jason, posing as a cop, showed up at Karen’s house to “confiscate” her laptop due to an investigation. Karen panicked, begging for it back. Rachel, filming the whole thing, confronted her and said, “See? It’s unpleasant to lose something important.”

I walked in and explained that Karen needed to pay Rachel back for the machine and apologize, or we’d post the video online. Humiliated, Karen agreed. She handed Rachel a check and promised to behave. Since then, Rachel hasn’t had to visit her dad’s house, and Karen’s been on her best behavior. Rachel got a new sewing machine, and this time, it stays with me.