Paul and his Encounters

On the way home, Paul is faced with situations that upset him in many ways. Such as his parents, former school teacher, and the Major from the army. The one encountering to me, that shows the most irony is the conversation between him and Kantorek in the bar. Kantorek ask him questions about the war and thinks he knows what has been going on, even though he really doesn't. He really just tells how to win the war and just go straight up, an attack the  French. Considering that it is impossible to do that, this upsets Paul. With all the bombing, deaths, and misery that has been occurring in the war. This then causes Paul to insult Kantorek and leave the bar.