More often than not, as far as train wrecks go, the ass end of a
train wreck is arguably the most desirable
position one might occupy whilst finding they are in the midst of a train wreck in process. The exception to this principle, of course, would be in the event that a train got ass wrecked. Even so, the ass-end of the offending party would most certainly fare
significantly better than that of the violated party.
Boy: "Hey, Girl, did you have a rough night last night?
You look like you just crawled out of the Ass End of a
Train Wreck."
Girl: "Maybe so, but if you think I LOOK bad, I FEEL
like that Train must have gotten Ass-Wrecked."