When someone you care about reacts angrily don't respond with anger or you double the chances of damaging a relationship worth keeping. The best thing to do is walk away and minimize the damage. Unfortunately stress levels are high for everyone even your family and friends in these tough times we live in and a simple sarcastic remark can spark a real feud. When they have had time to think about what they have said they will make sure it doesn't happen again. A mistake happens once it is a habit if you repeat it.