Oh gosh, this is my favorite passtime! I love giving tele-marketers a hard time.
Time is money, and they are wasting mine. For instance, a big window company use to call me all the time. I kept asking them to leave me alone and they kept calling, like two or three times a week. One day I had enough, and started off, "gosh, you timed this perfectly! We're remodelling our house and was just talking about we needed windows! Do you sell doors, we need some doors too. How about roofing, do you do rooves. How about vinyl siding, we have so much to do it would be great if I could just get it all from one source. Do you do septic tanks? We're gonna have to replace ours and all the plumbing."
Finally, the guy, unable to get a word in edgewise, just said thank you and hung up. I don't know they've ever called back. One day the phone rang and some lady was trying to sell something. I told her until I sold my riding lawn mower I couldn't buy anything and started telling her all about it. She finally hung up on me. Then one time I told them I would be interested in whatever it was they were selling in a few months, but my lawyer told me not to be buying anything else until I got this bankruptcy thing cleared up (they offered payment plans for whatever it was they were selling). Guess what? They called me back in 6 months and asked how it was coming!