I got a call yesterday from a guy from India named “Peter” (right!) saying he was with Microsoft. I hung up on him without saying a word.
The better thing to do is call him a liar and don’t hang up. It will cost them money, pisses “Peter” off (mine started cussing and threatening). It was really quite funny to listen to. To bad I did not have a recorder for the call otherwise I could have filed criminal charges.