This paper examines the syntax of adjectives in Japanese that describe the speaker's or the hearer's direct experience. As well known in the literature, their subject cannot be third person. The paper establishes that the subject of these adjectives exhibits effects of Obligatory Control when embedded under verbs like "think" and argues that the person restriction on their subject follows from the fact that these adjectives require their external argument be OC PRO, put together with certain assumptions about Case and clause structures.