Brittany stood up screaming when she discovered the sticky mess in her hair. The slime stretched between her fingers, clung to her phone, and stuck to her cheek. Her live audience watched everything unfold, while passengers struggled to contain their laughter. A young boy across the aisle finally shouted that she looked like she was making cotton candy. Brittany demanded that the flight attendant call the police, and suddenly my little act of revenge didn’t seem quite so funny.

But when the flight attendant asked what had happened, I admitted everything. I had been a librarian for thirty-one years, and I had spent my life teaching children that when they made a mess, they had to clean it up. So I moved beside Brittany, took a little olive oil from a passenger’s salad dressing, and began working the slime out of her hair, one strand at a time. While I worked, her anger slowly faded. She confessed that she had spent nearly all her remaining money on extensions because she desperately wanted to look perfect online. She missed her grandmother, who used to braid her hair every morning and tell her she was beautiful. By the time I finished, Brittany’s extensions were intact, her hair was neatly braided, and she was quietly apologizing for the way she had treated me. I apologized too. We both knew neither of us had behaved perfectly.

When we landed, Brittany decided not to involve the police. She returned the hundred-dollar bill she had mistakenly claimed was hers, and we parted with an unexpected hug. Later, she posted an apology video that reached thousands of people. She thanked me for fixing her hair and reminded her followers that kindness mattered more than appearances. Meanwhile, I finally delivered Emily’s birthday present, although a third of the slime was missing. When Emily discovered the viral video, she looked at me with enormous eyes and whispered, “Grandma, you’re famous!” That evening, I told her the most important lesson of the entire adventure: when someone hurts you, you don’t have to become just like them. Sometimes, the bravest thing you can do is make things right. And when Emily stretched her replacement slime across the kitchen and got it stuck in the ceiling fan, I simply reached for the olive oil.