On Tue, 17 Apr 2012 11:08:52 +0100, Bert Coules
wrote:

Mike,

I have bought and fitted the second of those to a relative's bungalow.
It's been in thrice-daily (or more) use by a variety of nurses and
carers over the past few months and has proved entirely safe and
reliable.

Bert

well you mean it's reliable...

"entirely safe" seems unproven?

Jim K