Not sure why you're getting those bogus downvotes - these 'midnight shifts' are absolutely real, and can cause serious problems. I know of a specific US-based

Not sure why you're getting those bogus downvotes - these 'midnight shifts' are absolutely real, and can cause serious problems. I know of a specific US-based specialist manufacturer who makes some of the best-in-class products in the world - a LOT of R&D and optimization. The castings and machining were done at a plant in Asia. After shipping their product, they discovered an obvious Asian knock-off selling for 1/3 the price. They immediately called their manufacturing partner and got that shut down, but it was too late - the Chinese competitor already had inventory, customers, marketing, etc., and just switched factories. And there's still debate in the purchasing community about which to buy. Those 'midnight shifts' literally enabled a new competitor from the starting gate for just a bit of extra temporary profit - straight up theft. (If it was my biz, I'd have not only gotten them to shut down the backdoor selling, but also put as a top priority finding a new manufacturing partner and moving production at the earliest possible date).