they meet some Nigerian wiseguy
No, Nigerian scam is sth else: known as Nigerian prince scam:
en.wikipedia.org/wiki/Advance-fee_scamHe said he wanted to transfer $20 million to the recipient's bank account. In exchange for transferring the funds out of Nigeria, the recipient would keep 30% of the total. To get the process started, the scammer asked for a few sheets of the company's letterhead, bank account numbers, and other personal information
In 1990s I actually laid my hands on a real scam letter from Nigeria sent to my business` address. I had no idea what it was about so I threw it away. I regret it today.