Passive-aggressiveness is a prison; one created and maintained solely by you yourself.
And like a prison, perhaps finding yourself in it from time to time may be an unavoidable evil.
But when being in the prison of passive-aggressiveness proves inescapable, such use ought to be as a temporary abode – never a dwelling place.
PS. Besides being the refuge of cowards, passive-aggressiveness is also the very antithesis of Integrity. Think about it.