<prompt> Human: Hello rpersonalfinance,Im not sure if this is where it belong s but a friend of mine is selling something through Craigslist and the deal seems a bit off to me. Here is the story! My buddy is selling his fish tank along with his fish for 800 here in the southwestern part of the US. He got an offer two days after the posting for everything plus a moving fee. The weird part is he already got a check for 1600 in the mail with half of that going to the moving company. The check came from some pizza shop in Illinois. Is it just me or does this sound like a big scam? Thanks for your help. EDIT: He called the pizza place and its a scam. Thanks for all your help!  <response>: Its a scam - the check will bounce, theyll run with the 800 and your friend will be on the hook for an 800 negative balance. 