scam offering low-interest refinancing

These calls have once again been on the increase from a "Robo dialer".

Here's what I do:  I feign interest, saying that "Yes, I have $6000 (or whatever...) of credit card debt"  [I have no debt]

I also agree that my interest rate is above 11% (or whatever they want to hear on that particular day).

I lead them on for as long as I can without giving them a particle of personal information.  Then I either try to lead them in another direction, or admit that my story was completely false.

Now what does this do for me?  It gives me the opportunity to WASTE THEIR TIME AND RESOURCES.  If enough people just did this and led them on, perhaps this company would begin to see that running this scam is no longer worth their time and expense.