Man at B&Q wrote:

Andy Burns wrote:

If you were surrounded by greedy users, you could always put a tinfoil
hat on the router!

Someone is missing the point somewhere.

No, merely subverting the point :-)

You always have WiFi access to your own router.

Yes I know

Fon access is also WiFi. If you don't want other people to use any of
your bandwidth then just don't sign up for Fon. You don't then get
access to other people's Fon either.

I was merely pointing out that if you want access to other people's WiFi
without giving them access to yours, you could butcher the aerial (which
would mean *you* couldn't access via the Fon device either) but they'd
hardly be in a position to tell!