Today’s case is from the 7th U.S. Circuit Court of Appeals and involves the rule for open and obvious dangers vis-à-vis a landowner’s duty to warn invitees.In Dunn v. Menard Inc., 2018 WL 576758 (7th Cir.), plaintiff Larry Dunn and his son purchased 21 rolls of insulation at the Menard store in southwest suburban Hodgkins. The cashier told them to pick up the insulation rolls at the store’s self-service warehouse. At the entrance, a sign advised customers: “For your safety, caution, do not cut …