To me, that's just as bad. Someone you brought in is doing something disrespectful and indicative of the central problem to the conversation. If you come to m

To me, that's just as bad. Someone you brought in is doing something disrespectful and indicative of the central problem to the conversation. If you come to my house and draw on my walls - I ask you to stop and let's have a conversation about it, so you bring a friend who starts drawing on my walls while we're talking about you drawing on my walls. You've lost all goodwill that I was willing to extend to you.