On 4 Mar 2004 20:30:41 -0800, in uk.d-i-y
(Zymurgy) strung together this:

Let's face it it's not hard to stick a neon screwdriver in, and I
check BOTH Live and Neutral - I've seen several live black wires :-0

You'd have thought so but I've just been to an emergency light in a
leisure centre recently fitted by so called professionals, complete
with reverse polarity. When I traced the cable back it ended up in a
ceiling rose with 4 x 2 core pyros, all with black sleeving, none with
any distinguishing marks!
--

SJW
A.C.S. Ltd.