I have begun answering unrecognized numbers with, "Joe's Pizza! Wachoo like?" in a New York-ish accent then I get increasingly irritable and shout at them, "Hey, I got pizza! You want pizza or not?!?", "You don' order then I'ma hang up!"
The last one actually said, "Wrong number" to a co-worker before hanging up. I might have actually got one of these jackholes to take my # down.
this party called about a half hour ago and called yesterday under another number - threatening a lawsuit from IRS - total scam IRS does not do this - report them!