Superman's Always Losing His Mind2016-04-06
Since the Man of Steel is so tough physically, his vulnerabilities are mostly mental and emotional. That means he ends up having his mind controlled like some mega-powerful puppet on a fairly regular basis. In Hush, for example, Poison Ivy seduces Supes and uses her plants to basically turn him into the world's most jealous boyfriend, determined to keep the Dark Knight away from his villainous lady friend.
Batman holds his own against Supes using a convenient little chunk of Kryptonite (supplied by Clark Kent in case he should ever lose control), but the hassle has to be obnoxious, especially since Bruce Wayne guards his own mind with the utmost vigilance.