Note: Please don't be alarmed at the bright red, fake "cap" gun laying on the table, it was something absently minded left on the table by my youngest - so nothing to do with a high-stakes gangster gambling den.
Rummicub is a cross between cards and dominoes it plays an entertaining game. I was to discover there can be regional rule variations - Newcastle to Edinburgh variants, all subject to the subtle interpretation of the English/Scots language. The Scots lore took precedence, something I will pass back to my Newcastle colleague. In the long rule my "rule discussions" with the mother-in-law served to focus the attention of my wife who swooped in to win and be hailed as Christmas House Champion!
Update: Won first game of Rummicub (thanks to wife showing me how I could get out with an "Orange 4"). Technically "Reigning House Champion" but another game is scheduled after dinner and I fear my performance may be alcohol affected!
Back to "Escape from the Dark Castle" for me then!