accomplice
An accomplice is a master at offering silent aid to another's misdeeds while deftly tossing one's own punishment onto someone else. They never dirty their own hands and excel at rubbing another's mud even onto their clothes. In the responsibility-sharing game, they always keep their share minimal and neatly avoid any blame. At the moment of exposure, they are the first to stand before a mirror, relishing their own guilt more deeply than anyone else.