Any adult child of an alcoholic or any adult child of an emotionally manipulative parent would tell you that the slightest conversation about the most mundane thing is enough to cause a total breakdown in communication with one of or both of their dysfunctional parents.
Whether it is a conversation about the weather, or about a news story on television, when trying to communicate with an alcoholic--or emotional manipulator--even the most simple conversation topics are enough to start what feels like a cold war.
Because non-alcoholics and non-emotionally manipulative people tend to communicate clearly--it is easy to become frustrated when attempting to converse with someone whose intent is 'not' to communicate clearly.
Anyone who has had the unpleasant experience of needing to speak to an alcoholic about a specific topic, with the intent to get to the bottom of some dynamic--will tell you that it is like trying to communicate with someone who speaks a different language. What boggles...