I think I’ve read something similar about the ex-dictator in Albania, who would place engineers into bunkers they've constructed and then fire on them to see if

I think I’ve read something similar about the ex-dictator in Albania, who would place engineers into bunkers they've constructed and then fire on them to see if they hold EDIT: found a source, seems to be a true story https://www.balkanride.com/2017/03/07/albanias-concrete-bunkers-defences-against-an-enemy-that-never-came/ https://www.balkanride.com/2017/03/07/albanias-concrete-bunk...