Sadly, these guys are conditioned to trash-talk from High School through college and into the pros. They talk-talk-talk trash while sporting their own halo. There's no better example of this crap than Shannon Sharpe. How bad did he have to talk to Derrick Thomas in order to set him off like he did?
Football alone isn't good enough for them. They have to mouth off about it.... and others pay.
Well, we are talking about a class of people who haven't had to accept responsibility for their behavior since junior high. They've basically stopped maturing at 17 years old, and the world has kissed their ass since then.