Nigerian inheritance scams.
My dad believes that if he sends them money that he will inherit the promised two million dollars. This has been going on for about four years now and he is no closer to getting any money and has been sending hundreds and maybe thousands of dollars to someone via Western Union and Moneygram. It has become increasingly worse this year because of credit cards being maxed out on cash advances and taking out payday loans to try and get ahead of the creditors. He's a mess!