I was talking about maintenance and all. Here he was sharing about the sewage tank and I said that I remembered him putting in the sewage tank and all. I happened to say 'I know' and then all of a sudden this brother of mine got very offended and we had a rather loud argument. He apologized later. I just felt kind of stupid. Sometimes I feel I say the wrong thing at the wrong time. I feel bad about it because otherwise, my conversation would have turned out a lot better.