Explore the challenges of writing robust C++ software in this conference talk from C++ on Sea 2022. Delve into the concept of contractual disappointment as John McFarlane examines how modern tools, guidelines, and language features can help prevent problems in C++ programming. Learn about the importance of contracts and their implications as a framework for handling run-time failures. Discover why a thorough understanding of interfaces is crucial for ensuring usability, efficiency, and reliability in C++ software development. Gain insights into effective strategies for managing program operation upsets and improving overall code robustness.