My Stepmom Called Me Petty Over Shampoo—So I Taught Them Both a Lesson They’d Never Forget

My stepsister didn’t have a job, and she kept using my expensive shampoo. When I told her to stop, my stepmom called me petty and selfish.

So I added a bit of blue food coloring to my shampoo. Not enough to damage hair—just enough to give a tint over time. Two days later, my stepsister freaked out over her “weird bluish tone,” blaming the water or the shower filter. My stepmom had no idea.

I moved all my toiletries into a locking cabinet after Harper tried to sneak into it. Things escalated when she brought a dog into the house for three days without asking. My room was covered in hair, my journals chewed, and my hoodie ruined.

I confronted her, and my stepmom tried to dismiss me. My dad stayed neutral. That night, I cried—not over shampoo or dog hair, but because I felt like an outsider in my own home.

Later, I discovered Harper was drowning in debt. She’d been keeping up appearances with clothes, skincare, and yoga classes—all on credit. I didn’t tell anyone. I left her a note: “You need help. Not from me—but maybe start with Dad.”

Her attitude changed. She stopped barging into my room, stole less, and started taking responsibility. Eventually, she admitted she hated moving in, being around me, and acting out because of her own struggles. She applied for a job at a pet store.

Months passed. Harper got the job and began helping around the house. My stepmom calmed down. One day, Harper left me an envelope with a Starbucks gift card and my old hoodie—cleaned and dog-hair-free. She wrote: “Thanks for the nudge. I needed it more than I knew.”

We even shared shampoo willingly after that. My dad noticed the peace and asked if we’d buried the hatchet. I said, “We’re building a new one.”

I learned that sometimes people lash out because they’re struggling, and a little patience or grace can change everything. And yes, I bought a new bottle of my expensive shampoo—Harper even gave me $8 to split it.