My test programs are intended to break the system, to push it to its extreme limits,
to pile complication on complication, in ways that the system programmer never
consciously anticipated. To prepare such test data, I get into the meanest,
nastiest frame of mind that I can manage, and I write the cruelest code I can think
of; then I turn around and embed that in even nastier constructions that are
almost obscene. [14]