The tearing of a garment in Hebrew culture was an expression of grief or anguish or horror at what had been done. The idea seems to be that clothing cannot remain intact while something else far more precious has been broken, destroyed.
Someone said they had a new job but biggest thing was just learning the scene, the new environment. You had to listen and learn and take stock. You could say too much to begin with. There is a time to learn and a time to make contribution. We need to become creatures of response. If one throws one’s weight about before they know what it is then they will look foolish.