Which reminds me: the last time I rode down that way I passed a unique 50' boxcar that had been set out on a siding. The roof was bowed upwards about two feet in the center, and the floor was likewise bowed downwards. The sides were bowed outwards, the ends ditto, and both doors were completely *gone*, giving the strong impression that something powerful had exploded inside the car and stopped just short of turning the whole thing into shrapnel.
Interesting potential modeling project!
-Pete