Briefly registered with Hays for one permanent post in which I was interested. Nothing came of it.
Next I knew, they had booked me an interview at a school in Bristol (I live near Coventry). Most put-out (verging on abusive) when I told them to cancel it.
I ended-up needing to propose legal action before they would remove my details from their database.
These people are the real scourge of the recruitment industry.