Biogenesis

Mulder:  Is there someone else on this case, sir? Skinner:  Excuse me? Mulder:  [accusingly] There's someone else on this case-- you're not telling me. Skinner:  What the hell's he talking about? Mulder:  I hear it... in my head.

What the hell is wrong with Mulder?  Doesn't he know that if he wants to stay out of psychiatric wards that that kind of information is not for sharing?

General Punkesque Behavior

Mulder sure loves to rub Scully's face in her belief in science.  He was just oh so smug when he stated that Dr. Sandoz's claims of extraterrestrial origin appeared in a science journal.

Lying to Scully about his interest in the case:  He's just a hired gun.  What crap!  Yeah, Mulder thinks of himself as merely a hired gun that's why he pouts when assigned to a non-X-File case.

Mulder does not listen!  Scully is a doctor.  Why is it that when it comes to his health Mulder never takes her advice?

Mulder is his own worst enemy.   Okay, I'll give him that he hears voices and that the voices are the thoughts of people around him.  I will even give him that the voices told him that Skinner was spying on him.  Fine.  So why under those conditions did he tell Skinner that he heard voices?

Why is that Bitch Fowley answering his phone?  What will it take for Mulder to trust Scully's instincts on Fowley's trustworthiness?

Criminal Activity

Searching through Dr. Barnes' office without a warrant with a little breaking and entering thrown in for good measure.  That's a good way to get oneself in trouble.

Stalking:  Once again Mulder forgets that when surveiling someone without a warrant it is criminal rather than law enforcement activity.