When they call about "lowering" my interest rates, I let them talk for a bit and then I tell the woman the creepiest voice I have, "WHAT ARE YOU WEARING?/ ARE YOU WEARING SILK?? I REALLY LOVE SILK." This results in an immediate disconnect 99% of the time.
I type the filthiest insults I can think of into Google Translate, and when the POS answers after I press 1, I simply place the phone on the speaker and hit the speaker icon so Google Translate reads what I typed aloud.
Got a call fomr this number this morning, for once I looked at the display on the phone, did not recognize the number, did not answer the phone and no voice mail message was left.