I ran into Dave today. It so happens that his sandwich van (of which I had no knowledge hitherto) is one of the throng that comes to Pynes Hill (a place which the agencies would appear to regard as my spiritual home). So when I went out to to indulge myself, there he was, and the chocolate brownie which I purchased from him was very satisfactory, leaving aside the cost of £1.
He said he found my blog, but he couldn't find the posts I wrote on saintly intercession, which he apparently intended to read. Here they are:
Number 1 - Number 2
Happy sandwich-selling Dave.