This document discusses the five worst practices in business intelligence (BI) implementations that can lead to poor results. It identifies these practices as: 1) depending on humans to operationalize insights, 2) expecting self-service BI to address all needs, 3) underestimating the importance of data preparation, 4) using tactical BI tools to support broad BI strategies, and 5) ignoring important data sources. The document provides details on the negative impacts of each practice and serves as a guide to avoiding common mistakes to ensure successful BI.