There was an incident where a technician dropped a large socket down a silo that impacted the side of a Titan missile and set off a chain of events that ended in an explosion that nearly detonated a nuclear bomb on US soil.
The Damascus Incident[0]. There's a book called Command and Control: Nuclear Weapons, the Damascus Accident, and the Illusion of Safety by Eric Schlosser that details the incident, and a PBS based on the book about it.
I was hoping this book would be a recommended. It really, really focused, reinforced is really not the right word to use here, my views on nuclear weapons.