I have just found out the hard way what happens when you accidentally touch the exposed wires sticking out of a broken fairy lamp while decorating the Christmas tree. They were 240V lights too! Perhaps I should not have had the lights on while doing it, or perhaps it was better that I did – had the little one found it later it could have been far worse.

Obviously being the geek that I am, the (unbroken) lights that are now on the tree are remote controlled using a spare LightwaveRF appliance module.