One would think that allowing the other to finish a thought would be the polite thing to do. It is and makes for clearer communication. If a wife or husband interrupt each other is it because the interrupter wants to help the other or is it because they want to protest what was just said? This is how bickering starts and seeds a bigger commotion. It takes one with high self-esteem to wait their turn. Galatians 5:22.