I believe INTPs are less passive-agressive than most. No sugar coat = the real story. We tend to stab you in the front not the back.
I agree with the bolded part. But, it does take a while before we will even get to this point. I am willing to flex A LOT before I get to this point. But, if I flex and flex and flex and you keep taking advantage, pushing, being ridiculous (or whatever), that's when you get the pie in the face. 90-95% of the time, I'm the nice, quiet, polite guy. The other 5-10% of the time, people don't know what hit them. I prefer not to do that, but as a last resort, I will if I need to.
Example: I had a co-worker competing for a pool of funding recently. Someone she was competing against for that same money, called another very high-up colleague and told that person to convince my co-worker not to compete for it. To convince her to just "let it go" so that the other person would have a better chance. So, my co-worker pulled out out of intimidation.
Next time I spoke with the person who made the phone call to the higher-up, he said to me, "So, is your co-worker still going to compete for that funding or what ever happened with that?"
Me (knowing it was him that made the phone call that caused the intimidation): That funding is fair game for everyone. I've talked to various people and they all agree with me. So, I'm not really sure who convinced my co-worker that she shouldn't compete, and I'm really not sure who would do such a ridiculous thing but, yeah, competition is part of what we do here, so we're definitely competing for the funding and we're going after it full force. Best of luck to whoever competes against us, but I really believe we have a great shot at it and I've convinced my co-worker that there's absolutely no reason to be intimidated.
Him: Oh yeah, I totally agree. Competition is definitely a part of what we do and if I were you I'd encourage your co-worker to go for it also. Definitely! Who do you think tried to intimidate her?
Me: I dunno, but it wasn't a smart move and we aren't going to buy into that sort of thing. Not at all.
With INTP's it's like: Set your silly games aside and just deal direct with people. You're not going to intimidate anyone and you're not going to pull the wool over our eyes. Just lay everything out on the table and deal fairly. If you do, we are about the nicest people you'll meet. If you don't, we're kind of like.....not so nice.