Guy asked for my father... I asked why he was calling and he simply said "Business." I told him that my father died 5 years ago and he proceeded to make a rude comment before hanging up. Morally unsound.

I don't know if was the same fellow, but I got a late night call (around 11:00 EST) from this number, and the man started with a very high-pressure line about was I still investing/working with brokers, and would I be interested in deals offerering 25/30% return.  I attempted to get him to explain where he'd gotten my number, and what evidence he had that I'd ever worked with brokers.  He was clearly trying to end the call once he realized that I was not a gullible loon.

I think he has called me about five times over the past 3 years. Always identifies himself has Ben. Not sure if it always this same number but always the same shtick of pretending we had preexisting business relationship, and then using a lot of hard sell jargon trying to sell me stock opportunities.
The funny part is he obviously doesn't remember that he REALLY has called me before and i already know his scam. I usually keep him on the phone for at least half an hour by pretending to be really stupid and gullible. When he eventually catches on that i'm dicking with him, he ALWAYS starts swearing at me. its a laff riot but i would like to know some way to put him out of business for good.