One side of a conversation I just had in IM, after pointing out that 1) I donated blood today, and 2) I'm a little loopy:
Me: My arm is sore. Me: Just noticed. Me: Wow, I'm out of it. Me: Perhaps it's the lack of oxygen-carrying elements travelling to my brain. Me: I'm out of it and medically inclined. Me: I'm a doctor in italics.