The parasympathetic system is responsible for stimulation of “rest-and-digest” or “feed-and-breed”[4] activities that occur when the body is at rest, especially after eating, including sexual arousal, salivation, lacrimation (tears), urination, digestion, and defecation

I had earlier suggested he stick his dick in the fryolater…that sounds more likely to be something triggered by the parasympathetic nervous system than his head.