Citizens in Wausau—which has a population of around 134,000—face a fine if they throw snowballs on public property, including sidewalks, city streets, parks and schools, WSAW reported.

“It’s really in the interest of public safety. A lot of it is just consideration and common sense. You don’t throw stuff at people, period,” Wausau Mayor Robert Mielke said. “It’s there for a reason.”

“No person shall throw or shoot any object, arrow, stone, snowball or other missile or projectile, by hand or by any other means, at any other person or at, in or into any building, street, sidewalk, alley, highway, park, playground or other public place within the city,” the ordinance reads.

However, the snowball ban does not apply to private property.