<prompt> Human: Im trying to sell something on the Internet. And I got in contact with a guy who said he wants to buy it but he needs it fast. He said he will send me the money but I have to send the thing to his friend in Nigeria. He contacts me everyday actively.Is it possible for him to transfer money to me and take it back again without me knowing it?It feels strange that I am the one selling but still afraid of getting scammed somehow  <response>: Do you live in Nigeria? If not, dont try to sell things to peoples friends in Nigeria. Its a scam 100 of the time.If he sends you something, it will be a bad check or money order. By the time you figure that out, you wouldve already shipped the product out. Hence the need for it be done quickly. 