[Neil]

The other thing I find interesting is that quite a few people are using hacked modems that are almost untraceable. I say almost because they would have to trace you down to an area and then start disconnecting customers until the connection in question went down. Very time consuming so very expensive.
Also from my poor understanding of how it works they would assume it was the legal customer who was fire sharing first anyway so the wrong person could be accused.

As far as someone else using your WiFi, I am not sure if you would get away with that as an excuse.