Ridiculously Rude!!

My brother works at Dominos Pizza in Newcastle KZN, he always complains about the owner being rude to them, she makes them work like slaves with long hours and little pay, I thought he was being a cry baby until my mother fell sick and needed my brother to take her to hospital. When I spoke to her and asked if she can allow my brother to leave work early so that we can take our mother to the hospital, she threatened to fire him and started to swear me#shocked for days. What kind of an employer doesn't allow her employees to attend to urgent family emergencies??? Utter nonsense