Buto - 3x12 The Baby in the Bough

Ok, now sa pamamagitan ng the end of this artikulo (or already at the beggining, because of the title) you might be calling me crazy.
But my theory is this:

What if Parker wasn't a ghost/hallucination?
I mean, at first I did really believe he was just a figment of Booth's mind, because of the drugs and stuff.
But we do see along the episode that Parker makes physical stuff (like getting an object that was deep in the water, like carrying the lantern, like opening the hatch!) - I mean seriously, what a hell of a good hallucination, that makes that kind of physical stuff.
At first I accepted all this, but when at...

Pilot [1.1]

Brennan: Tell me you tried "excuse me" first.
Angela: Ah, Sweetie. Yes, I did. Welcome home. Are you exhausted? Was Guatemala awful? Was it horribly backward?
Brennan: And yet, I was never reduced to flashing my boobs for information.

Angela: You know, diving head first in a pit of cadavers is no way to handle a messy breakup.
Brennan: Angela, nothing Pete and I ever did was messy.
Angela: [laughs] Then you weren't doing the right things.

Brennan: Look, I am sorry if I embarrassed you in front of your friends, but susunod time you should identify yourself before attacking me.

DHS Officer:...