There are boundaries in everyone's life they would rather not cross, but sometimes we get our feet wet, and sometimes it swim full force against the tide to get through to the other side. As far as interrupting someone to try and insure your message was received, you could just paraphrase back to them your own thought, not what they just said.
First messages are generally short to the point, and then expanded on to get the full point across. When the light turns green we can go. Short simple to the point. Now the questioner ask what does yellow light mean? and what is up with the red light, and if we can go on green then why is that guy in our way? Sometimes life just needs to be interrupted and the person slapped silly with repeated off the wall stupidity.