OK, when I get called by telemarketers, my first impulse is to be extremely rude to them, foul langauge, etc.
I won't buy things I need when I'm cold-called.
But I usually won't be rude, I'll at least ask them politely to never call me again.
But now I've got four numbers on the do-not-call list, and it seems to me that the telemarketers should be happy to know that they needen't wast their time calling me, because I won't ever, ever buy products or services I do not solicit myself.
So even for the industries not bound by the DNC list (banks, phone companies, insurance, *sigh*), it should be worth their while to not call me, neh?