When I bought my first house, I thought Peter and Sarah next door were the perfect welcome committee—until Peter’s “helpfulness” slid straight into crossing lines. He trimmed my bushes without asking, cut across my lawn with his SUV, and eventually started leaving his car in my driveway. At first it was “just a minute,” but minutes turned into a habit. After months of excuses, my patience finally hit empty.

I confronted him more times than I can count; he shrugged it off as being a good neighbor. The Friday before a Vegas weekend, I decided to flip the script. At 3 a.m., I eased my car across Peter’s driveway, perfectly positioned so neither of their cars could move. I grabbed my bag, called an Uber, and left that scene locked in place.

By the time my flight was taxiing, Peter had sent a barrage of texts—he needed to get to work; Sarah had a doctor’s appointment. I replied, “Just a few minutes while I handle some business—back Sunday. Neighbors should help each other, right?” Then I muted his number and enjoyed my trip. For once, he was the one stuck waiting on someone else’s “few minutes.”

When I got home Sunday, both of their cars were exactly where I’d left them—boxed in and quiet. Peter didn’t wave, didn’t speak. He also never parked in my driveway again. Sometimes courtesy won’t fix a pattern; a mirror does. He finally understood cause and effect. Lesson delivered—and received.