I've never been called by a 3rd-party recruiter that I didn't hang up on. Often I mock them first. I even sent one company, emailpcs.com, an invoice for 10 hour

I've never been called by a 3rd-party recruiter that I didn't hang up on. Often I mock them first. I even sent one company, emailpcs.com, an invoice for 10 hours of consulting at $150/hour because they were calling me up every day for a month. They refused to pay, I sent them to collections, we settled.