What's in a word or two?

The problems in this scenario are that the teacher was not aware of a student's anger issues and she/he created somewhat of a confrontational situation. It is also a problem that students still arrived late to the test, even after a discussion. The teacher should have been aware of something like an anger management issue, but at the same time if he didn't have an IEP and it hadn't presented before in this class, how would she/he know or be expected to know? Obviously, the teacher's discussion about lateness wasn't effective, but it doesn't really say what she/he said so I can't really comment on that. Looking back on the situation (knowing that the student has anger management issues) it would have been a good idea for the teacher to get someone who was aware of his issues. Maybe she/he could call a school counselor down, student could go write the test there and the teacher could express that an apology was needed by the end of the day. Important thing to do though is to not allow more confrontation and to give the student a chance to cool off. They also need to understand how saying "F*#$ off" isn't going to get them anywhere and its hurtful in unnecessary ways. In future situations, I would have some sort of signal/system established with the student so that they knew they could go grab a coke or just take 5 to cool off when it was necessary. But if they lashed out instead of taking advantage of the system that had been put in place to help them, some sort of punishment would occur.