It is ridiculous, especially when a mistake is human error as in Miles Austin's case. I think he was about to put the ball in his other hand in preparation for a big return. The problem is the defender had just hit that arm, so it was bad timing. If BP thinks that staring somebody down will stop them from making human error, he's got to be joking. Now if a guy keeps jumping offsides or false starting (mental errors), get on his behind VERBALLY. That evil glare seems to be done for the cameras more than to motivate players.