$5.36 million verdict. A 30-year-old plumber carrying a 50-pound toolbox seriously injured his right knee when he slipped and fell while at a jobsite. The man was walking across concrete insulation matting placed at the site. He slipped while stepping onto a curb and then banged his knee into the curb. The matting was used to insulate the ground for a planned pour of concrete. Our theory was that the use of the matting violated a local construction ordinance because it was not slip-resistant. The defendants offered a total of $250,000.00 to settle the case. This is the record high for a knee injury or for a slip-and fall case in the State of Illinois.