tl;dr: A simple coffee mishap–placing a mug upside down under a Keurig–illustrates a core Lean lesson: human error is inevitable, so blaming people doesn’t help. Instead, good systems are designed to anticipate mistakes and prevent harm, reflecting Lean’s principle of respect for people and the importance of mistake-proofing (poka-yoke), whether in kitchens, factories, or hospitals. The Coffee Mistake Here’s a funny one… I was dragging a bit, working from home, and was ready for a … Continue reading My Simple Keurig Mistake–and What It Teaches Us About Human Error and Lean