Alas, Morde, I copied somebody else's chart smile emoticon It's
  not the chart I follow because I like a friendly conversation
  and conversations that follow this flowchart are, while
  efficient, sometimes not very friendly exchanges and can be
  somewhat mechanical. So, I'm generally not a fan of efficiency
  in conversation. BUT, I like that the chart is laid out bare
  here, because I've talked to many people who DO use this type of
  flowchart to converse and debate, and knowing their system makes
  it easier to deal with them.