We account for the homogeneity effects arising with focus sensitive attitude predicates, deriving an unnoticed asymmetry between question- and proposition-embedding *surprise* with respect to homogeneity. In particular, we observe that question-embedding *surprise* (unlike question-embedding *know*), lacks a homogeneity effect that is present when *surprise* embeds a proposition that contains a definite plural. Our proposal builds on a view of homogeneity as truth-value trivalence (Kriz 2015 a.o.) and a focus-sensitive meaning for *surprise* modeled after Romero (2015), presenting a borne out prediction made by these accounts. We show that focus sensitive attitude predicates like *surprise* provide us with a new angle from which to investigate the general phenomenon of homogeneity in natural language.