> Hmmm. I'll have a go. I seem to remember that you can anyway ask your
> computer for a list of wireless services and can then ask it to connect to
> one, even if the default is your own one. I might be wrong. I would feel a
> bit uncomfortable asking the neighbour to use security in case my kids
> browse their network, because I don't know how the neighbour would react to
> that.

Why would you feel uncomfortable? If you noticed your neighbour had
left their car unsecured would you not tell them? I'm sure if you just
let them know that *anybody* can access their network they would
tighten security.