An On-Going Series: Conversations I Don't Understand Why I'm Having

(Ring, ring, pick up the phone, greetings exchanged)
Candidate: You called me about a job. Me: Yes we are looking for [highly-specific job] in the area.
Candidate: Oh, well, I'm now doing this other kind of job and I'm not looking for something else.
Me: Oh, okay.
Candidate: I did do [highly-specific job] for about three years. I still have [highly-specific certifications] active. [spends another minute giving me more details about how he's well-qualified for the job I'm recruiting for]
Me: Oh, that's great, but...uh...did you also just say you are not interested in a new opportunity right now?
Candidate: Right.