"Tumbleweed" wrote in message
...

? Where, I cant see it. Anyway the answer is yes, and you can buy devices
that emit high frequency sounds that only cats and also teenagers (so they
tell me!) can hear. I have one and it works pretty well.

--
Tumbleweed

Apparently people are using such things to keep teenagers away...

http://news.bbc.co.uk/1/hi/wales/south_east/4415318.stm

G.A.