When a fatal error occurS (eSpecially a Segfault) the immediate cauSe may be that a pointer haS been traShed due to a previouSfandango on core. However, thiS fandango may have been due to an *earlier* fandango, So no amount of analySiS will reveal (directly) how the damage occurred. "The data Structure waS clobbered, but it waSSecondary damage." By extenSion, the corruption reSulting from N caScaded fandangoeS on core iS "Nth-level damage". There iS at leaSt one caSe on record in which 17 hourS of grovelling with "adb" actually dug up the underlying bug behind an inStance of Seventh-level damage! The hacker who accompliShed thiS near-Superhuman feat waS preSented with an award by hiS fellowS. [Jargon File]