I'm thinking the worst type of interaction for me these days is being on the receiving end of passive aggressiveness. In one case it was like a hollywood actress that had me fooled. In another one- it is an insidious, sociopathic game. The best thing to do is when it's detected - to simply run in the other direction. I can't deal with that shit. You have something to say- have the balls to say it to my face. That is what adults do.
But the passive-aggressive way is far more artful.