Things guys fear the most

Not ranked

Balding/Graying

Loosing in anything competitive (athletic, job, eating contests...Anything)

Anything involving sex (Was I good?  Am I going to fart?  Will she notice my feet?  Ad infinium)

Is my father proud of me?  Mom's don't count, they love unconditionally.

Getting caught (someone calling us out on fearing something, internet history, heist, incapable in some way)

Anything else we can cover up with confidence or cockiness