Well let me help you out there, bud.
Taking shots at someone behind their back makes you a coward.
cow·ard
noun
1.
a person who lacks courage in facing danger, difficulty,
opposition, pain, etc.; a timid or easily intimidated person.
adjective
2.
lacking courage; very fearful or timid.
3.
proceeding from or expressive of fear or timidity: a coward cry.
It makes you a few other things too, but I'm watching my language today.
You probably “summer” at Martha’s Vinyard and drink white wine.