On Sat, 16 Feb 2008 11:40:43 +0000, Si $3o&m wrote:

In message , ALex
writes
Personnally i would have every home fitted with one,the thought of
repellng teenagers is just too good to be true

Doesn't just repel teenagers though. Repels all people with young
hearing including toddlers & babes in arms.

Indeed and people's high frequency hearing various enormously. I know
I could hear very high frequencies well into my twenties (I don't know
about now though).

M.