Mine

on 1:TEXT:logout*:?:{ set %username $eval($+(%,$address($nick,1)),2)
   if ($+(%LoggedIn.,$eval(%username,2)) == 0) { notice $nick You are already logged out! }
  elseif ($+(%LoggedIn.,$eval(%username,2)) == 1) { notice $nick You are now logged out.
  set %LoggedIn. $+ $eval($+(%,$address($nick,1)),2) 0 }
    else { notice $nick You do not have an account!
    }
  }
}