No, I think she’s being wussy. I agreed with House when he wondered what does it take for her to get mad at a man already? House is routinely horrible to her. (He’s routinely horrible to the others, too - but they respond differently to it.) Foreman just tried to infect her and she just nods & takes it.
I think you took a much more overarching angle on what I meant. You were relating specifically to this episode and so was I. I completely agree, if given the choice of the mystery being the sickness or the source, I’ll choose the source. My response had only been to say that if we already had figured out the source, the mystery is in the disease itself. Sorry if it came off as a rebuking statement, that was not the intent.
I have a question about the science in this one. If this is some kind of an opportunistic brain infection, what are the odds that it would pursue exactly the same course in two different people? I’m assuming that brain is pretty much brain so that a fungus or bacteria would be as happy chewing on one part of your temporal lobe as any other. So it seems that the progression from giddiness to unbearable pain wouldn’t be written in stone.
However, Foreman is a jerk and probably needs some unbearable pain inflicted.
Having House do the brain biopsy was pretty creepy.
Best line of the evening: “If I hadn’t shot him, he would have spent the next few years helping med students drive in the commuter lane.”
I’m betting that the toxin is caused by something he’s been feeding or bioengineering into his pot plants! 
That’s my opinion also, based on:
1.) the early legionaires (sp?) diagnosis… moldy water … water being sprayed onto the plants. There was a pretty long shot at the misting bit when Foreman was in the pot shack.
2.) Just because the bucket of droppings isnt the source, doesnt mean that there aren’t ‘other droppings’ in use elsewhere.
Think maybe Foreman stocked up while he was there? I’ve been trying to think of some link other than just being in the apartment, that would be a great twist on it. Killer Pot!
I hadn’t thought of that. I was thinking more of some airborne ick the plants were putting out or some such. But Foreman getting sick because he poached some of the dude’s weed would make for a more interesting pot (oops! “plot!”) twist.
We already had a Killer Pot episode though, with the baseball player in the first season, which is why I think the entire dirty appartment and pot shed are red herrings. I mean, there has been repition (sex always = bad, especially kinky/extramarital/teen), but the pot thing seems too similar and too obvious.
I think EvilGhandi’s point is that maybe the needle that Cameron was stuck with was clean, since it looked like Chase dropped it on the floor before even being able to stick Foreman with it. I’m inclined to agree, except that Foreman’s later regret/remorse/guilt seemed awfully intsense. (i.e., not just “I wish I hadn’t-a scared her”, but “I wish I hadn’t infected her”).
–KidScruffy
Thanks all for the info on the doctors. Two more questions: what’s an intensivist? I somehow got the impression that Chase was a heart specialist… but it was just an impression.
Also, I seem to recall Cameron was refered to as an alergy specialist? I think it was a scene when they were all in the men’s room. (Which House obviously engineered to piss her off.) Anyway is allergy medicine part of immunology?
Intensivist: A physician who specializes in the care of critically ill patients, usually in an intensive care unit (ICU).
Nope, he won’t be leaving. He’s on next week’s episode, recovered but still suffering from some mental degradation (which is slowly going away).
As for whether he’s sick from poaching pot, I doubt that, for one reason–Foreman is very familiar with House’s methods, and trusts his judgment (especially when he probably perceives House as his only hope at this point). Even if he did filch some pot, there’s no way he’d keep this fact from House if it would be relevant to his diagnosis.
Well, she did have her husband die of cancer in front of her so maybe she is familiar with how angry/irrational seriously ill people will act. Can’t explain why she puts up with House’s shit!
Yes, allergy is part of immunology. Things like rheumatoid arthritis, lupus, etc. are also autoimmune disorders & could be considered under immunology, too.
(Sorry it took so long to get back to you. Busy busy busy.) 
But the needle Chase was using was not the same needle Cameron was using. Chase’s needle had dropped to the floor and presumably been discarded long before Cameron came in with her needle.