On April 4, 2012 the Supreme Court of Ohio decided Schwering v. TRW Vehicle Safety Systems, Inc., 2012-Ohio-1481.  In this 7-0 decision written by Justice Lanzinger, the Court held that a plaintiff may not voluntarily dismiss a claim without prejudice pursuant to Civ.R. 41(A)(1)(a) when a trial court declares a mistrial after the jury…