In “Stuck in a Dentist’s Chair, and Other Blackout Tales From Spain and Portugal,” The New York Times takes you on a delightful journey through the whimsical and often hilarious escapades of travelers who find themselves in surprising predicaments across Iberia. Whether it’s an unexpected dental drama or a sudden power outage, these tales capture the unpredictable essence of adventure, reminding us that sometimes the best stories come from the most unforeseen moments