Speaking as a sparks of some 26 years experience...... DO AS YOU'RE TOLD YOU SILLY BOY......... the switch will not cut the feed to the lights, just the return >:(
the switch will not cut the feed to the lights, just the return(http://www.gifs.net/Animation11/Computers_and_Technology/Lamps_and_Bulbs/Bulb_flashes_3.gif)