Nebraska State Senator Ernie Chambers sued God, had the case dismissed (God wasn't properly served, you see), and may appeal on the grounds that an omiscient God by definition has adequate notice of the suit. I think he may not be entirely serious, though:
Chambers filed the lawsuit last year seeking a permanent injunction against God. He said God has made terroristic threats against the senator and his constituents in Omaha, inspired fear and caused "widespread death, destruction and terrorization of millions upon millions of the Earth's inhabitants."
Chambers has said he filed the lawsuit to make the point that everyone should have access to the courts regardless of whether they are rich or poor.
One skeptic to another, dude: your tactics may not be the most effective of those available to you. (It's worth noting the legislator has served for 38 years.)