I did not know that Ryan had a tendency to get mad.
Rob Ryan (who is not the head coach of the Dallas Cowboys, in case you forgot since he gets way more camera time than Jason Garrett) has been known for his temper.
Now he's going head-to-head with Bengals big man Andre Smith and managing to not only be the most recognizable defensive coordinator in the league, but one that draws unsportsmanlike conduct penalties.
You don't need to be a lip reader to know that Rob is mad.
Maybe he just likes melted cheese.