"I didn't know you were that litigious."
"Oh, I can be quite litigious."

First of all, 23 points given to someone who can tell me where that quote comes from. Very obscure, and I don't know why I remember it.

Secondly, on the topic:

Here's the story (Dallas Morning News report):

Local PTA has a fundraiser. Auctions off all sorts of prizes. Biggest fundraiser of the year.

Dad bids on one, a Harry Potter party for six kids that takes place later on school grounds. Dad loses.

Dad files lawsuit saying that the school is promoting Wicca.

I can't imagine this needs any explanation or comment.