User blog comment:Soul Wolfy/Robbie,Gideon,and Gnomes theories and possible disclaimers/@comment-5695619-20121112220706

Well in the Inconveniencing episode, nothing really happenes to him, but isn't there when Dipper is doing the dance. But when he's done pleasing Ma and Pa and the gravity becomes normal again, he pops out along with everyone else, groaning. So it is possible he may be a zombie, because maybe supernatural things can't hurt each other (?) And he probably saw Dipper's dance as well. XD