Steps to Find a Human

You may have heard about this web site on the news: Paul English's IVR Cheat Sheet, with directions for bypassing telephone trees and talking computers to break through to a human operator at companies and government agencies.
       IVR? Interactive Voice Response. That's what those maddening robots are called.
       It includes such impossible-to-guess tricks as (for Sony), "When prompted by the automated voice system to answer ANY questions, just say 'Agent'"; or, for the INS, "After selecting English, (with a 2 second delay between) 2 6 2 4."