Over at Lifehacker they ask the question, “Why not run an open wireless access point and share your connection?” Security maven Bruce Schneier offers several reasons for doing so.
I’ve got one good reason not to. I said I wouldn’t
You see, it’s not about the odds of getting caught. It’s not about giving people a reason not to hack me. It’s that when I signed up for the service I promised not to do that.
If the only reason you conform to an agreement is because of what will happen when you get caught, then perhaps you shouldn’t agree in the first place.
In the words of Lord John Whorfin: “Character is what you are in the dark.”