My sweet grandmother, Marilyn, is the most generous person I know. So when my aunt Lori pitched the idea of a family vacation, Grandma was thrilled. But I soon realized Lori wasn’t planning a bonding trip; she was after a cash grab. Aunt Lori convinced Grandma to fund the vacation, promising a luxurious resort. But when they arrived, Grandma was dropped off at a roach-infested motel while Lori and her daughter, Rachel, checked into the fancy resort. Grandma, always understanding, tried to make the best of it, but when she called me, I was furious. I immediately booked the best suite at the resort for Grandma, charged to Lori’s credit card, and picked her up from the motel. That night, I marched Grandma through the restaurant where Lori and Rachel were dining. Aunt Lori’s face turned pale when she saw Grandma in her luxury suite. “Decent?” I said, “There were cockroaches.” And then I revealed that everything was charged to Aunt Lori’s card. The look on her face was priceless.Grandma had the best time in her new room, and afterward, she decided to cut Aunt Lori off financially. Sometimes, the best revenge is showing someone they can’t take advantage of you—and teaching them a lesson they won’t forget.