I missed getting a screenshot, but I had Ken get blown up by the fat suicide mobs and every mob after that that had to go past his body got stuck going back and forth over his body. I blew up my last guy trying to get a screenshot as they didn't attack until he entered with the 'me first' passive, at which my character got insta gibbed. At first I thought it was a one time glitch but they kept doing it and wouldn't attack anything. If it happens again I'll grab a screenshot. Something of note may be that he died very close to the entrance to another room. Was also in one of the ice levels.