My little village is built on the site of some ancient Japanese village [0] and any construction that involves digging up dirt often also unearths some kind of archaeological find that stops all work for half a year while the archaeologists do their stuff, if they can even be bothered to come.
It’s happened often enough that it’s a wink and a nod that nothing was found. Foremen and anyone ‘in-charge’ will not be on site until any kind of digging is complete.