The goal of this paper is to account for specific restrictions on clitic clusters observed in French and Spanish. Based on new empirical evidence we show that the correct generalization capturing the facts is that when a third person dative clitic and an accusative clitic co-occur in a cluster, the accusative clitic cannot be anteceded by a logophoric center. We claim that these antilogophoricity effects derive from perspective conflicts: two logophoric centers cannot co-occur in the same domain; formally, this creates an intervention effect as there is only one logophoric operator in the relevant domain. This hypothesis furthermore provides new insight into the Person Case Constraint, which we propose also derives from a similar kind of perspective conflict.