Puphf gets sad sometimes because he feels left out and worthless and doesn't know what to do with himself. Typically, he his usual absentminded, hyperactive self who seeks company and recognition through bugging the absolute heck out of people... such as The Great Mallard http://kuloraki-p.deviantart.com/art/Puphf-and-The-Great-Mallard-Color-and-No-Color-540364649, or, most notably, a certain robot who belongs to :iconFoamblanket: ..... But, in the evening when the sun goes down and he doesn't have the energy to frolic through government facilities, nuclear plants, and other houses, and buildings––blowing them up and collecting chocolate chip cookies and girls/princesses along the way as he rockets through each facility/buisiness/house––he keeps to himself, and just goes outside. He doesn't think because he's too stupid to, which makes it harder for him to identify with himself fully. Usually he'll lay in the middle of the street with his hands behind his head (that's one of his favorite places to be; when he is close to death he divides to create a second version of himself, and through this multiplication he can freely go about doing whatever it is he wishes, even if it's relaxing in a place like the street) or, rarely, he'll go for a walk in search of a certain robot who belongs to :iconFoamblanket:––who he feels he can identify with. Though, ultimately, it's his best-est friend in th' whole world who ends up making him feel better. <3