A Waterloo man was arrested after he hosed down firefighters and police who responded to a trash fire in his backyard. According to police, firefighters were called to 1320 South St. around 11:25 p.m. Wednesday and found 46-year-old Mark Anthony Lugrain was spraying a pile of garbage burning near a chain link fence. He allegedly began arguing with firefighters about extinguishing the garbage and then started spraying firefighters and a police officer who arrived on the scene.