Mr.Cynic88 said:
I recently received an automated cold call from somebody with a nigerian-esque accent saying that if I donated money to him, he would pray for me. Being both logical and an atheist, I hung up, but I'm sure there are plenty of old/religious people who may have taken the bait.
Is that a scam, though? If they really do pray for you, then it's paying for a service. Sure, a service that does nothing, but it's not like he promised for a god to help you if you donated.
Which are scams.
My uncle is religious, and he has been taken advantage of by religious organisations that promised to heal his health problems if he had faith. (and of course, the way to show your faith is by giving them money.)
On a more cheerful note, my aunt loves to troll her relatives with scam-calls. (Of course, no-one loses money over it)
She once sent a pair of knitted old socks to my other aunt with a letter about how their family had been chosen for study for the new super-socks, and asked them to try the socks out and keep a diary about the effects. The target aunt and her mother-in-law fell for it for about a week.
One other time this aunt called my grandmother, pretending to be a police officer (she can disguise her voice), and first started asking if my grandma had taken her dog on a walk to the nearby park. My grandmother got scared, of course, since she was afraid the police was calling because she hadn't collected the dog's poo, and my aunt let her believe it for a while, before starting to go on about how there had been a bear in the park and the police was calling everyone to warn them about the bear...
My aunt could make a living by scamming people. Then again, she owns a company that sells stationary and that kind of stuff, so maybe she already does...