Anyone care to share their "go away" answers to telemarketing calls?

In UK we have the Mailing Preference Service on which you can add your name and address and similar services for telephone and e-mail. Cold callers are supposed to check against the list, but can call if you forgot to check the box in the Arabic small print. It lasts for ever I believe, but I am not sure what the penalties are for breaking the rules.

In UK, we also call them telemarketeers (when feeling polite) but the only ones I seem to get by phone are double glazing. They seem to have stopped because I did add our number to the list. They also got fed up with me saying we were in a conservation zone (also true).
I find "No thanks" and putting the phone down works. "Don't call me, I'll call you", "Do you want to waste both our valuable time and have me say no at the end, or do you want to ring some more likely shot now?", "What a shame, I had them done last week", or my favourite "I'll hand you to the wife, she handles things like that!". She is so mad at me she takes it out on them.

Rod