In the legacy of 19th century philosophy of social progress, the parasite was defined outside the law of competition. Parasite, as one of our ways of dealing-with problems, now is completely transvaluated, as one of the heritage of deconstruction. Grounded in a research on medieval bestiaries, this lecture performance questions the logic of interference, as a practice of tuning in noise, and it shares some ideas about the emerging monsters in contemporary thought. What does it mean to put the thought in direct relation with forces of the outside, as Deleuze and Guattari would suggest? What kind of other dormant, inert, ambient sonic layers are offering themselves, or ‘coughing in’ our structures of obligation? The significance of monsters, as potent and parasitic, characterized by missing transhumanist body parts, can it allow us to consider where we speak from? This lecture peruses those questions, and not so much looking for novelty in something that is impossible to systematize, nor to promise getting off the leash of controlled names.