Muehlman v. Keilman

Paul and Lorraine Keilman (plaintiffs) alleged their neighbors, the Muehlmans (defendants), maliciously ran, started, revved, and raced two semi-trailer trucks' diesel engines near the Keilmans' property and bedroom, repeatedly waking them, harming their health and comfort, and drawing similar complaints from other neighbors. After personally viewing the trucks to assess the noise and fumes, the trial judge found for the Keilmans and granted a temporary injunction barring the Muehlmans from starting, idling, or revving their trucks between 8:30 p.m. and 7:00 a.m.; the Muehlmans appealed, arguing their conduct wasn't a nuisance, that no irreparable harm was shown, and that the harm to the Keilmans without an injunction didn't outweigh the harm to the Muehlmans from one.