Explore the unexpected incidents and their lasting impacts on open source ecosystems in this thought-provoking conference talk from Strange Loop 2022. Delve into the complexities of sociotechnical systems as Julia Ferraioli and Amanda Casari examine a series of historical events in open source that surprised users, had wide-reaching consequences, or were inappropriately rationalized in hindsight. Learn about the Morris Worm, Heartbleed, and LeftPad incidents while considering the increasing complexity and growth of open source projects. Gain insights into the legal aspects of open source and reflect on the importance of understanding and preparing for unforeseen events in technology. This talk challenges viewers to reconsider their assumptions about the predictability of incidents in the ever-evolving world of open source software.