I just find this very funny !!
What I cannot understand for the life of me is why there is so much hatred against the telemarketers ? They are just trying to do a job - it is *just* a marketing channel - which does work in generating revenue for their company.
A polite but a firm "I am not interested" works in most of the cases. Even when you have a very "aggressive" guy/gal. If he refuses to hang up, then giving 2 mins of yr time wouldnt harm you - you can continue doing whatever you were, and after he has finished his pitch you can just go "my answer is still no" !!
Ahh well, I guess as a marketing guy, I have a different perspective on things.....