Our conversations our killing me. He is so full of himself, spouts on about subjects he knows nothing about, lectures me on how I'm bringing up DS (all wrong
) almost endlessly, engages me on a subject (i.e. women's rights or terrorism and then attacks along the lines of 'you're just saying that because all you think about is money, or you're middle class so you don't care about ordinary people, etc and other such utter nonsense. I use the 'how to talk to teenagers' technique but to no avail. He just wants to tell me stuff so he can revel in how incredibly clever he is. I don't want to knock him down because for various reasons he is quite insecure and I would not want to dent his confidence.
Is it just us, or is this normal?