Equipment does not report itself, and a run leaves nothing missing.
Outside working hours — A sensor on the machine's circuit gives the minute it began and the minute it stopped, so a run after everyone has left is a fact rather than a rumour.
Moved out of its place — Forklifts, cranes and trailers report movement, at a threshold set so ordinary work stays quiet.
You paid for every unplanned run — Electricity, consumables, hours on the counter, and a service interval arriving earlier than the plan allowed for.
The training question lands on you — If a person who was never instructed on that machine is injured on it, the employer is the one who answers for it.
Goods disappear in ones and twos, and the gap only shows up at the count.
Pallets, drums and reels — A sensor on the load reports the moment it is lifted or dragged, in the store or out in the yard.
Stores and cabinets — Tooling, fuel, cable, spare parts: opening the door outside its hours is an event in its own right.
Daylight is no protection — The alarm is off through the whole shift, and a pallet leaving the yard at 13:00 breaks no perimeter.
You hear about it now — An alert while the load is still on the forks, instead of a shortage in a spreadsheet three weeks later.
Know that nothing starts and nothing leaves without you being told.