$lastName = 'Doe' . substr(sha1(rand()), 0, 7);
$this->type('first_name', "$firstName");
$this->type('last_name', "$lastName");
$lastName = 'Doe' . substr(sha1(rand()), 0, 7);
$this->type('first_name', "$firstName");
$this->type('last_name', "$lastName");