Welcome the lessons that may be there. Ask yourself what God might be teaching you. That interaction with your boss that made him so angry? Was there something you could have done differently? If so, what was it? How might you respond differently in the future? What do you need to do in order to make the change(s)?
Equally important to ask is this: what was not yours to own? If your boss blew up at you over a seemingly small issue, you do not need to be responsible for his own problems with anger management. How might you clarify your boundaries in future interactions so that you don’t find yourself in similar, dysfunctional situations?