Indian/sub-continent scammer calling from a spoofed Los Angeles number claiming he was from the "Windows Security Desk." Seems like my computer was leaking information onto the internet and their web server alerted them so they could "help me secure my computer." Wanted me to open my "main page" and tell him what shortcuts I had. Then he would tell me where I could download a patch to save my valuable information.
They get so angry when you screw with them waste their time and then call them out.