A few years ago, I organised a charity quiz night with three friends. We expected around sixty people and were delighted when more than a hundred tickets were sold. Unfortunately, I treated the extra interest as proof that the event was already successful. I spent most of my time designing difficult quiz questions and almost none checking the practical details. On the evening itself, there were not enough chairs, the sound system failed, and the queue for drinks blocked the entrance. The worst moment came when one team left before the final round because they could not hear the questions properly. I felt embarrassed because the problems were predictable and avoidable. The event raised money, but enthusiasm had hidden weak preparation. Afterwards, I asked the other organisers to list everything that had gone wrong. Instead of defending my decisions, I wrote a checklist for future events: test equipment, confirm capacity, assign responsibilities, and plan for more people than expected. Six months later, we organised another quiz night using that system, and it ran smoothly. The failure taught me that creativity attracts attention, but reliable preparation is what allows a good idea to work.