Say that you get a tempting offer from a Nigerian prince and decide to invest some money in helping him transfer his vast fortune from Burkina Faso or Dubai over to the bank across the street. The seemingly simple task of bringing over the 18 million dollars left to him by his father hits some snags which require you to put in more and more of your own money.
Eventually you have invested more than you ever would have ever done up front, just trying to protect the sunk cost, the money that you already sank into Prince Hussein Ngobo’s scheme. And to protect your self-esteem, you must go on believing that, no matter what Prince Ngobo does, he is credible and sincere. Any failings in the interaction are either your fault or the fault of some third party. Anyone who tells you otherwise must be a Ngobophobe.