Mealey's (March 7, 2017, 9:38 AM EST) -- COLUMBUS, OHIO — An Ohio federal judge on March 2 found that underlying product liability lawsuits against Big Lots Stores Inc. constitute separate occurrences under a commercial liability umbrella insurance policy, partly granting the insurer’s motion for summary judgment (Big Lots Stores, Inc. v. American Guarantee & Liability Insurance Co., No. 14-02635, S.D. Ohio, Eastern Div., 2017 U.S. Dist. LEXIS 29675)....