I do this as well when approached by a recruiter who has obviously read my resumé. I always am grateful, and polite, and usually try to set them up with someone

I do this as well when approached by a recruiter who has obviously read my resumé. I always am grateful, and polite, and usually try to set them up with someone in my network (after checking with that person first, naturally). I haven't worked with a recruiter in maybe ten years, but I find that, you know, you catch more flies with honey than vinegar, and I've accumulated the contact info of a bunch of classy recruiters if I ever need help.