Logout of apache?

I've tried now 100 ways to do authentication with mod_ruby and have
reached the end of my rope.  Using CGI::Session, cookies arbitrarily do
not get passed or get passed then deleted by the browser immediately.
Moving to Apache RubyAuthenHandler utilizing:

AuthType Basic
AuthName IC3Beta
RubyRequire rrvc/rrauth
require valid-user
RubyAuthenHandler Site

Here is my Site Class:

require 'dbi'
require 'md5'
module Site
  def Site.authenticate(r)
    # Make sure client has sent us a username/password
    file = File.open("/tmp/uname","a+")
    file.write(r.notes['username'])
    file.close
    if r.get_basic_auth_pw.nil? or r.notes['username'] == "logout"
      r.auth_name = 'IC3Beta'
      r.auth_type = 'Basic'
      r.note_auth_failure
      return(Apache::DONE)
    end
    DBI.connect('DBI:Pg:rapidbilling:localhost','user','pwd')
do |dbh|
      uname = r.connection.user.downcase
      passwd = MD5.new(r.get_basic_auth_pw)
      row = dbh.select_one("SELECT username FROM tbl_users WHERE
LOWER(username) = '#{uname}' AND password = '#{passwd}'").to_s
      if row.length < 1
        return(Apache::AUTH_REQUIRED)
      else
        r.notes['username'] = row
        return(Apache::OK)
      end # if row.nil?
    end # DBI.connect()
  end # def Site.authenticate()
  def Site.logout(r)
    # Make sure client has sent us a username/password
    r.user=""
    r.connection.user=""
    r.auth_name = 'IC3Beta'
    r.auth_type = 'Basic'
    r.note_auth_failure
    return(Apache::DONE)
    DBI.connect('DBI:Pg:rapidbilling:localhost','user','pwd')
do |dbh|
      uname = r.connection.user.downcase
      passwd = MD5.new(r.get_basic_auth_pw)
      row = dbh.select_one("SELECT 1 FROM tbl_users WHERE
LOWER(username) = '#{uname}' AND password = '#{passwd}'")
      if row.nil?
        return(Apache::AUTH_REQUIRED)
      else
        return(Apache::OK)
      end # if row.nil?
    end # DBI.connect()
  end # def Site.authenticate()
end # module Site


At the top of my .rbx i've got 

r = Apache.request
rp=r.prev
if req["action"].to_s == "logout"
    r.notes['username'] = "logout"
    ENV['REMOTE_USER'] = nil
    Site.logout(r)
    puts "Thanks for logging out."
    exit
end

I have to puts that line and exit, because if I fallthrough absolutely
nothing happens.  r.notes does get set to logout, but nothing else
apparently works.  If i redirect in this code, it still does not ask for
a new login/pass.  What to do?  As a side note, i only get one chance to
enter username/password in the apache basic auth, then it immediately
goes to AUTH_REQUIRED.  I'd love to give 3 tries.

A wishful mod_ruby nuby.
-- 
TJ Vanderpoel GCIA,GCIH
[email protected]