Most building teams plan for maintenance but rarely rehearse cross‑trade outages. In this episode Alex Morgan interviews Michael Harrington and James Rogers about running compact tabletop exercises tailored to building technology: networks, BAS, power, access control, and vendor dependencies. We frame a simple 60‑ to 90‑minute drill that reveals ownership gaps, single points of failure, communication breakdowns, and unrealistic vendor SLAs. Michael shares how drills change capital planning and tenant messaging; James explains realistic failure scenarios for HVAC and BAS that expose hidden assumptions. The conversation focuses on causes, tradeoffs, and practical steps: designing scenarios, selecting participants, documenting decisions, and turning findings into low‑cost mitigations and SLOs. Listeners will come away with a lightweight playbook to run their first drill this quarter, the top failure modes to prioritize, and how to convert exercise outcomes into durable operational changes.