If you, your family, or friends ever go near the shore of the ocean or a lake, you need to learn about tsunamis. Unfortunately, the current public perception of the tsunami hazards is all too often a three-step denial: (1) It won’t happen to me. (2) If it does, it won’t be that bad. (3) If it is bad, there’s nothing I could’ve done anyway. This perception must be changed in order to save lives and build a culture of tsunami hazard preparedness.