prepchecking. When you obtain a generality early on after the zero question, you make it a zero A. One asks the zero A, "Have you ever disconcerted your mother?" The needle reacts. The auditor fishes around for a specific other incident. Finally gets, "I used to lie to her." So the auditor writes a zero B, "Have you ever lied to your mother?" And then nags away at the pc until a specific time is recovered. When the zero B is clean, ask the zero A. (HCOB 21 Mar 62)