Don't grab newly released or unreleased stuff would be the first thing.

If you hardly use P2P as you state and you feel you are taking unnecessary risk, then by all means call it quits or get better protection e.g. a proper VPN service to route you traffic through.

I don't personally use a VPN or any other anonymizing service, but am quite careful what, where, when and how I use P2P. If I was located anywhere that the copyright trolls had any pull, then I would most likely get myself a dedicated server from a reputable company and route everything securely through there.