On CNN just now Tom Craddick just stated that in the past 25 years he'd been in the House no one had walked out on voting except for a few senators in the late 70s.
Of course, if he'd extended that to the past 32 years he would have had to inform us that he himself had pulled a similar stunt.
Candy Crowley unsurprisingly didn't bother to share that with us.
Go take this poll.
UPDATE: Not the first time.