We know kids can be a pain when you're flying, but this is a whole 'nother level. It happened on an eight hour Lufthansa flight from Germany to Newark last August . . . a toddler was climbing on the seats, running down the aisle, and screaming like he was possessed. Not crying . . . just screaming and acting out. And based on the video one passenger posted on YouTube, it lasted the entire eight hours. Naturally it sparked a debate about parenting, and also the health of the kid. For some reason the video's just making the rounds now.