Stuff like this happens only when several things go wrong at once: what we call a multiple contingency situation in my business. It usually has the worst consequences when "the system is highly loaded. Yesterday I had a lot of folks and such in my trainroom at one time with them videotaping my layout - which seemed to take forever - with everything running. A lot of people and a lot of motion and a lot of noise in the room - clearly too much and too many. An elbow in the wrong place. Someone not quick enough and putting their foot in the wrong place. Scratch one ATSF map-slogan car
I am not blind to the fact that this was my thirteenth Map-Slogan car (I put little tags underneath when I buy them). Maybe that number really is bad luck. Like the floors in a lot of high-rises, in the future when I count my cars in a set, there will be no "number thirteen," just in case.