After watching a well known programme about dodgy so called tradesmen , I am still laughing at a bloke pretending to be an electrician called to install an outside light fitting and convert a single socket in the kitchen to a double . This bloke had to borrow money off the customer so He could buy a 2 gang switch ??? When he fitted the light fitting and the switch He couldn't understand why the light did not work . After blaming a duff lamp and a duff switch left it at that .. He'd run the cable from the fitting to the switch ( what about the neutral ) ? no wonder it wouldn't work . He'd forgotten or didn't know about the neutral being required for the lamp to work ??? As for the switch in the kitchen He used the customers kettle to prove that it worked ? what about making sure that it was safe before He left it ? The cpc wasn't connected to the socket .... headbang