no, no just go post their number on all those "win a free car" and stupid ads that give u spam type things, then they will get it all right back at them. They'll eventually have to change numbers there for getting a whole new call list to scam and your number has a good chance of not being on it.
Sad part is that there are individuals that do not have qualifications to do anything else but a marketing job. I have talked to the individuals in scam telemarketing and they get real protective. Look up Dave Ramsey's handling of telemarketers and credit cards.