[Withano]

No.
His anger lasted about 20 seconds
It didn't come from nowhere, he was undeniably goaded
His anger isn't regular or unwarranted
He threw a ****ing sandwich, more comical than dangerous.

If it lasted longer or came from nowhere, happens to that extent more often or threw something heavier, then maybe. But as it stands it was 20 seconds of shouting at a man who deserved it. A warning was appropriate.