I agree - that's why I started by saying that Zed is right to point them out, as I realise that he is teaching people new to C (and potentially to programming).

I agree - that's why I started by saying that Zed is right to point them out, as I realise that he is teaching people new to C (and potentially to programming). I added my caveats just to point out to the slightly more experienced programmers here that it's not quite the whole story.