Well on the Soyouz T10-1 the rocket had a major malfunction on the launch pad and the crew survived only because of the escape system. "the escape system motor fired, dragging the orbital module and descent module, encased within the upper shroud, free of the booster with an acceleration of 14 to 17g (137 to 167 m/s²) for five seconds."

Can't have been a pleasant ride, but when you escape alive it's all good

Visual enjoyment can be had here http://www.youtube.com/watch?v=UyFF4cpMVag

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The impossible often has a kind of integrity which the merely improbable lacks.