Notchy, I am a fan of people not getting ripped off by conmen, whether they are scamming by email or dodgy 'tradesmen'.
Andy
TBF Keitai is asking for advice -most dodgy tradesmen either think they are great at what they do already or simply dont care.
And his chisels are "scary sharp"
on a serious note, I understand your frustration -sadly site construction is full of people who are chancers. I find decorators and roofers mostly.