Batman: "Y...y...you m..m..m..monster. M..m..my l..l..legs. Completely...f..f..frozen. D..d..d..don't d..d..d..do...this."
Mr. Freeze: "Apologies my dear Batman. But consider it a noble swap you're making. You for Norah. A true hero's end."
Batman: "Fr...Fr...Freeze...p..p..pl..."
(And at that moment, Batman's lungs froze and his entire body was statue-fied)