I have way too much fun talking with them. You don't have to be rude or obnoxious, but you can have fun with them by giving them answers that don't fit their script.
Here's one of my conversations:
Telemarketer: May I speak to DaveMo~?
DaveMo~: Hold on and I'll get him.
...after about a minute and a half...
DaveMo~:Hello?
Telemarketer: Is this DaveMo~
DaveMo~: Yes, it is.
Telemarketer: Well Dave, this is blah blah from blah blah calling to inform you that you have won a free vacation to a destination of your choice for 3 days and 4 nights. Isn't that wonderful?
(asked in excited tone)
DaveMo~: (in non-excited voice) I don't like vacations.
Telemarketer: But this is a free vacation, just for you. Isn't that great?
DaveMo~: Nope, I don't like vacations.
Telemarketer: Well, if you could go anywhere in the U.S. that you wanted for vacation, where would you go?
(still excitement in the voice)
DaveMo~: I'd go to my next door neighbor's house?
Telemarketer: (the excitement is not there, now bewilderment) You'd go to your neighbor's house for a free vacation?
DaveMo~: Yes.
Telemarketer: May I ask why'd you would go there?
DaveMo~: Yes, 'cause if I wasn't having fun, and I don't have fun because I don't like vacations, I could just walk back to my house and it would be over.
Telemarketer: So you really don't like vacations?
(bewildered!)
DaveMo~: That's what I've been trying to tell you.
Telemarketer: Well, it seems that I really can't do anything to help you.
DaveMo~: I tried to tell you that I don't like vacations.
Telemarketer: You have a nice day. And if you have any questions, please call 1-800-xxx-xxxx.
DaveMo~: If I don't like vacations, now why would I want to call that number. Besides, you said it way too fast.
Telemarketer: You have a nice day, sir.
DaveMo~: You too, bye.
...end of call...
Now I'm sure I made that guy's day! It sure made mine alot better! I just can't wait until the next call and make something else up!
Dave
