Oddly enough the compound effect of coughing up for a new kitchen/bathroom whilst letting her have a look at the trading screens (having a good run right now) seems to have alleviated things.
Seems bribery and being secretive is the only way to go.
I wouldn't even begin to try and explain futures to her. She thinks the concept of a CFD is silly, the market is just plain stupid, that we make/lose money without doing any real work and that we should live in a Utopian world where a 'real' value is placed on shares (this came up last night) and not traded.
I'm trying to get to the point of doing no work but I think I'm several thousand hours of screen time away from that right now which is why I need the Missus on side.........hence fripperies are a necessity.