So get sued! Who cares? It's expensive to sue. Especially if the city refuses to answer the suit or respond to any pleadings. More expensive still if the "teacher" gets a court judgment and the city refuses to pay or even respond. Takes years and thousands of dollars -- and requires the cooperation of local marshalls who can be persuaded to be very uncooperative.
Go ahead...make this scumbag sue. Meanwhile the children are protected from evil. Isn't that worth a fight?
If the defendant refuses to answer the suit, the plantiff gets wins a default judgment. It is actually the cheapest and most lucrative outcome possible for the plaintiff.
You do not understand. He is not the one whose pockets will be affected. There are a number of Christ-hating legal organizations, such as the Freedom From Religion Foundation mentioned in the article, who receive large grants of money from atheists. These groups encourage individuals in small, unwealthy towns pursue these test-case stunts, putting small towns into the red with the costs of defending against these evil lawsuits. And the atheist multi-millionaires and billionaires pay the complainant's legal bills. They regard this as "social justice."