Mario's night walk past Ennet House
And, though one perk of Familial Dysautonomia is a relative physical fearlessness, Mario keeps to a pretty limited area during insomniacal strolls, out of deference to Avril’s worry. This is one reason why he consents to be hung way out into space from Schtitt’s transom for filming all-court play, held only by some prorector with a firm grip on the back of his lock’s vest, which the players looking up at Mario’s forward ski-jump posture off the crow’s nest find incredibly terrifying and audacious and ballsy, and Avril won’t even leave HmH during all-court filmings.
Context
Main text plus its endnote (the second paragraph is n.242 entire, p. 1045): the deficit reframed as "perk" — no felt pain, so no learned fear — which is why the E.T.A. kids read Mario dangling off Schtitt's transom as ballsy rather than symptomatic. Disability as the source of what looks like courage; and note he limits the walks anyway, not from fear but from deference to his mother's.