— Donna Childs recently bought a home in Rhode Island about 5 minutes from the Pocasset River, and, despite past flooding, everyone told her she did not need flood insurance. As a risk management expert, she knew better. “I’m far from the water, but basically for the cost of a Starbucks (coffee), I can have insurance,” Childs, author of “Prepare for the Worst, Plan for the Best,” said in a recent interview. Many people decide to invest in flood insurance policies after a scary weather event. But sometimes they let the insurance lapse because it is too expensive, and also because they might misunderstand that familiar term from news and weather reports, “100-year flood.”