It has happened at least, LEAST 5 times now where either I've applied for a job that I would need training in, or have had a recruiter call me up asking me if I know anybody with a very rare skill set. In all instances I asked,
"are they willing to spend the 2 weeks to train me/him/her in?"
And in all instances the answer was,
"no, they need somebody to hit the ground running."
Sure enough I would get a call from a recruiter looking for that same rare skill set or see the same job in the want ads a month or two later.
The idiocy doesn't end.