Of course in this case the pilot turning base was in the wrong. I don't think anyone would query this. What I, and I think bookworm, and possibly many others, would question, is whether many pilots are like this, or many civilian pilots, or many recently qualified pilots...or indeed whether any deductions whatsoever can be made from this one incident. And I think some of us would also query whether good lookout as as good and reliable as some people like to think it is.