I think I first heard the slang “hairy” in Apocalypse Now. The American Heritage says: “Fraught with difficulties; hazardous: a hairy escape; hairy problems.” In the anoted Wordworth edition of Joyce’s Dubliners it says, “too hairy: experienced, canny.” Have you ever heard this slang to be used in this sense? Joyce’s sentence reads thus: “She doesn’t know my name. I was too hairy to tell her that.” Could it be that the editor(s) made a mistake and it was “it” instead of “I” which then would mean closer to the sense we know of the slang? or what?