On 2015-08-01 4:09 AM, yorkshireman@y... wrote:
> with the glue well scrubbed in to the face of each.

This point bears repeating. It's one thing to spread glue on a surface 
like icing on a cake, but what's wanted is to work it into the surface, 
so it penetrates, more like butter melting on toast.

Don

Our comforting conviction that the world makes sense rests on a secure
foundation: our almost unlimited ability to ignore our ignorance.
Daniel Kahneman, Thinking Fast and Slow