The high school stuff is relevant, because it shows a consistent theme and pattern of general infantile behavior over several years. It's not just one clip on Hard Knocks. It's not just one episode of overblown "body language" in a practice. He's been this way through high school, through college and now into his first training camp. So I wouldn't hold my breath waiting for him to change now.
I'm not expecting all Cowboy players (or 20 year olds) to be choir boys, but at least be a non-choir boy who enjoys football. Bennett has never showed any interest in cashing his incredible God given gifts. This really isn't even like Antonio Bryant ... some headcase you draft hoping he grows up a little bit, because he's was an incredibly productive player in college. Bennett was nothing more than mediocre in college. Wade gave the ultimate spin job when he said he was "laid back" like Earl Campbell. He's the exact opposite of 'laid back'. He's extroverted, energetic, talkative, boisterous ... he's just appears 'laid back" on the football field, because he would rather be doing other things. His 'body language' is that of a pouting child who's angry he has to do his choirs, when he would rather be playing video games.