weird communications

i took my birthdate off studivz to see whether anyone would remeber (almost no one did). i am at home, dog- and housesitting, writing papers, and my granddad called (he's like 87 and almost deaf). i answered the phone and he started immediately talking to me as if i were my father (he didnt know that i was at home and my parents werent.) he told me (my father) to tell me (really me) happy birthday etc and that i should visit sime day etc. i kept telling him that i was me and not my father, and he jsut didnt understand. a really weird situation. fun though.