Monkey Working With Calculator Sees a Ghost

Davie the Capuchin monkey working with his calculator. Midway through the video Davie sees something. I swear he is always seeing stuff that isn't there it then I hear the neighbors Dobermans bark so I guess he heard something. Funny cause sometimes he will jump up and look at something like that and I always wonder if he sees a ghost cause there won't be anything there. Late at night when watching tv he has run to the edge of the bed acting like that. Kinda scared me thinking there was a ghost or burglar. Hahahahaha