Her entire thought train derailed as she gaped at the man beside Katie.
It's just that I got derailed and I need to get on track.
The VCR was nearly derailed over the issue of copyrights.
The leading bogie of the third car was also derailed.
If this pressure is not relieved in some way, the train may be derailed either (I) by " climbing " the outer rail, with injury to that rail and, generally, to the corresponding wheel-flanges; (2) by overturning about the outer rail as a hinge, possibly without injury to rails or wheels; or (3) by forcing the outer rail outwards, occasionally to the extent of shearing the spikes that hold it down at the curve, thus spreading or destroying the track.