These idiots have been calling two or three times a day for the past few weeks. At first the guy asks for someone who doesn't even live here (I've never even heard of him); we've tried repeatedly to tell him he has the wrong number. When they called back today and I told him to go get his supervisor, because someone obviously wasn't paying attention at their end, he started cussing me out, calling me a stupid MF and said he was going to kill my dog (I don't have a dog, so no worries there). Is there some way to block these idiots?