grumpy wrote: Don't mess with the mains,
Very good advice. I would never try, but, ya know, some people understand electricity more than others. I have an electrician friend that I hire on occasion to do stuff that I deem a tiny bit risky or I just don't have time to do. I've seen him do things live....but other times he simply will not. He knows more, understands more deeply.... if the humidity is too high, or if he's not wearing his favorite socks & boots, he won't go near. But other days, other situations, he'll be on a fiberglass ladder, or his boots are new.... I don't know...but HE does... and when things are right he KNOWS he is safe to fiddle with live wires. Geepers, me, I test with a meter, then after I know it's dead I'll touch the wires to each other just to be sure. I can remember once when sparks flew!