On Sat, 10 Jan 2009 19:28:34 +0000 (GMT), Dave Plowman (News) wrote:

It was as big a bodge then has now. Luckily RCDs prevent such bad
workmanship.

*Might* prevent such bad workmanship. If the borrowed N still returns
through the RCD that the Lives comes from there will be no imbalance to
trip the RCD.

--
Cheers
Dave.