My In-Laws Tried to Push My Dad Out of His Home — His Clever Revenge Left Them Speechless

John and I planned a quiet anniversary trip, leaving my father safe in the home he’d built with my late mother. We asked John’s retired parents, Bob and Janet, to stay with him, and they eagerly agreed. But once inside, they treated the house like theirs — criticizing the food, mocking the décor, and suggesting…