Because he's always standing by The Edge.
Put your ear up to a tree and listen for the bark!
A fifth.
Their knees. (Not sure if this one translates well to English)
A "C" gull!
None, they just stand around complimenting it, and get mad when it won't screw.
Antique machinery
Legendary
Watching your mother-in-law backing up towards the edge of a cliff in your new BMW.
Bono-y-Bono
Because he's close to The Edge