The bridge will be around long after you get your last paypacket. You do it for a living daily. How often have you built a bridge, a nuclear faility, the largest zinc or gold or copper mine in the world. How about 8.4 recorded on the Richter scale. You earn a living, some people care what they are charged to provide.
Rejection is easy.
The vehicle from the QA ISO Acreditted Supplier does not have a calibration Certificate on the water meter, reject the product on this basis, due to faulty calibration. Oh fine, another Korean shopping centre with 600 dead, or a Chernobyl on a fault line, Hong Kong rail failure. I've poured at 14000ft, in 125deg F, at 32deg F, to tolerances allowing for shrinkage. The question was How do you control water in the field. My reply was you have to play the game with the six grade drop out finisher in producing a good product with out them knowing.