Repeated calls from this number, which are silent, then either ring off or say a machine generated "goodbye" and rings off. I have had the calls purporting to be from Microsoft before and have been very rude to them.
Yeah, got this idiot insisting I should get in front of my computer, and I'd get a REFUND if I give him information...I just played him like the rice-eating stooge he is. I could hear a dozen of his babbling monkey cohorts in the background. Glad to waste his time and keep him on hold while I did my own work. Every now and then I'd say something to string him along.