Actually with an open wifi you're more protected agaist such instances because it's concrete proof that your IP was shared by other people, considering how ISVs assign these IPs dynamically and that their logs may not be accurate.
And in civil lawsuits, you can spend several thousand dollars in legal fees more or less effectively making your point.
Also, it's increasingly apparent that other jurisdictions will increasingly attempt -- or be used -- to ensnare people in more... "permissive" jurisdictions. Don't like the venue? Sue -- or prosecute -- them in another venue.
On the one hand, I feel sad that my response to this is to "close up" connectivity. On the other hand, I for one don't have the resources with which to liberally take such situations on.
