lack of balls
A chicken who yaps about you when you're not looking but screams like a baby when you come face to face.
My friend said I was a disaster to my other friends, but when I showed up, he was too busy eating pizza to say anything.
My brother said I was a joke to my dad, but when I walked in, he acted like he was doing his taxes.
My boss said I was a liability to my coworkers, but when I showed up, he was too busy eating lunch to care.