Shadowplay

There’s this bar Downtown that features exotic dancers, but they are only visible behind backlit scrims. The patrons are treated to the erotic display of shadows, while the owners can claim that the patrons aren’t actually seeing the nude performers.
Nothing is exposed, no flesh is visible at all. Technically, everything’s legal, and everybody’s happy.
Well, not everybody. There’s always somebody.
They balked, claiming some kind of harm, demanding that they stop the titillating shows at once.
The bar owner refused to back down and fought them in court.
After extensive and painstaking research by the judge, the owner won.