Americans dismiss this behavior as “fussy” or “O.C.D.” or simply “annoying.” We’re expected to check our ćejf at the door. But in Bosnia, they just shake their head and say, “What are you gonna do? That’s his ćejf.” You don’t have to like someone’s ćejf. But—as long as it’s not hurting anyone—you really ought to accept it. Because everyone has one.