casting the runes
n. What a guru does when you ask him or
her to run a particular program and type at it because it never
works for anyone else; esp. used when nobody can ever see what
the guru is doing different from what J. Random Luser does.
Compare incantation, runes, examining the entrails;
also see the AI koan about Tom Knight in "A Selection of AI Koans" (Appendix A).