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. “What’s up?”

“I have an early meeting today, and I was wondering if you could take Emily to school with Sophie. Just this once? I hate to ask, but I’m in such a bind.”

I hesitated. Not because I didn’t want to help, but because I wasn’t sure if I could juggle two kids in the morning rush. But then I remembered how much Sophie liked Emily, and how sweet Emily always was, so I shrugged it off.

“Sure, no problem. I can drop them both off.”

Karen’s face lit up like I’d just offered her the winning lottery ticket.

“You’re a lifesaver, Lena. I owe you one!”

I waved her off, smiling. “Don’t worry about it, really. It’s just a quick favor.”

That’s where it all began. A ‘quick favor’ that turned into something much more complicated.

The next morning, Karen was at my door again, looking just as polished and perky as before. “I have another early meeting today. Would you mind taking Emily again? She loves riding with Sophie, and it would be such a help.”

This went on for weeks. Every morning, there was Karen, all smiles and gratitude, asking me to take Emily. At first, I didn’t mind. Emily was well-behaved, and Sophie loved having her along.

But soon, it started to feel less like a favor and more like an obligation. Karen wasn’t asking anymore — she was expecting.

One morning, Sophie and I were running late. I’d hit snooze on my alarm one too many times, and the house was a whirlwind of chaos. Sophie couldn’t find her shoes, the cat had knocked over a vase, and I hadn’t even had a chance to brush my hair.

As I scrambled to get us out the door, my phone buzzed with a text from Karen: Can you take Emily today?

I stared at the message. I was already frazzled, and the thought of adding another kid to the mix made me want to scream. But then, I had an idea, a simple, desperate one.

I texted Karen back: Actually, I’m running late today. Can you take Sophie?

I figured it was only fair. After all, I’d been driving Emily to school for weeks now. Surely Karen could handle one morning, right?

The reply came almost immediately: Sorry, the car’s too full today.

I blinked at the screen, disbelief flooding over me. Too full? Karen drove a massive SUV! And all she ever transported in there was Emily!

My mind raced, trying to come up with any reasonable explanation for that blatant lie, but there was none. Karen had just shown her true colors, and they weren’t pretty.

That was the moment I realized I’d been played. My goodwill had been mistaken for weakness, and Karen had been taking advantage of me, plain and simple.

I wanted to march over to her house and confront her, let her know exactly what I thought of her flimsy excuse. But instead, I clenched my teeth, forcing myself to stay calm. This wasn’t the time for a confrontation. Not yet.

Instead, I got Sophie ready, drove her to school, and spent the rest of the day stewing in my anger. Every time I thought about Karen’s text, a fresh wave of frustration washed over me.

I wasn’t going to let Karen get away with this. Not anymore. She’d poked the bear one too many times, and she was about to learn that I wasn’t as much of a pushover as she thought.

The next morning, sure enough, I got the text: Can you take Emily again today?

I could practically see Karen’s smug smile as I read those words. She was so sure I’d say yes, just like every other time. And I did say yes — only this time, I had a plan.

“Hey, Sophie, how about we stop at Rosie’s Donuts on the way to school today?” I called up the stairs as I finished packing her lunch. Sophie’s favorite donut shop was just a few minutes out of the way, but I knew it’d add enough time to our trip to make Karen notice.

“Really? On a school day?” Sophie’s voice was full of excitement as she came bounding down the stairs, her backpack slung over one shoulder.