The dock can look under control until a late trailer and a volume spike compress the space that usually absorbs small mistakes. Parcels stack at the lane mouth while scanners keep chirping, and people drift closer than they prefer because the pickup window is already constrained, as space continually narrows by the minute. When a carton catches at a joint, and the run hesitates, someone steadies the frame so the stream continues. Yet, the larger issue is the pattern of repeated interventions in confined zones where sleeves, boots, and attention creep toward motion. When setup shifts slightly, predictable flow turns into guesswork again, and pressure reshapes choices faster than training can during the moment.