Peyo stands guard behind the door of Robert's room, which is at the end of his life. The scientific and nursing team observes Peyo's peculiar and sometimes irrational behavior, like this one. He blocks the entrance with a threatening air (ears laid back and teeth grinding) so he prevents all persons from accessing the bed of the protected patient. Many families have also experienced this phenomenon by observing Peyo alone with their loved ones, going back and forth between the bed and the entrance door or being gently pushed with the tip of his nose so as not to touch "Doctor Peyo's" lying friend.