Two questions:
What things are seriously bandwidth intensive?
and
How do you know whose wireless connection you’re using? I hooked up my new laptop and a window came up saying that a Linksys connection was available and would I like to use it. It wasn’t mine, and there was no indication whose it was. How do you tell?
Betsy
Things like downloading large files and streaming audio and video are bandwidth hogs. General surfing the internet is lighter use.
As for figuring out whose network it is, good luck. Unless they have named it something identifiable, and in this case, they haven’t, it will be a bit of a chore to sort it out.
FWIW, this is a pretty interesting issue, one I’ve heard debated in tech circles fairly often. There really don’t seem to be many, if any, legal precedents, so that is rather unhelpful in sorting it out.
As for the most recent example, of stealing money from someones table, that really isn’t a very good analogy. If you take the money, they no longer have the money and you do. If you are using someone’s wifi, they still have access to it also. If you are being a bandwidth hog, that is a different story as it will effect their internet use, but a quick check of your e-mail, most likely won’t.
The electricity analogy is a bit better since even if you use their electricity, they will still have it, but like someone mentioned, they have to pay for the various amounts of electricity used. Also it is a bit different because in that example, you are going to their property to use it, while the wifi is being broadcast into your property.
The general consensus seems to be that using someones wifi to try and figure out why yours is down or to quickly check your e-mail is ok. Using someones wifi instead of paying for your own or hacking into a secured network is not ok. Everything in between is pretty fuzzy.
ETA:
here is a pretty good article on this issue. It is a bit old, but as far as I can tell, the basic ideas haven’t really changed.