Well, one would certainly hope people have enough brain cells to know not to do that. If, however, they choose to be so stupid, they deserve to be scammed. Good grief.
Shopping scams:
(1) You will receive a check & are asked to deposit it. You will then be asked to 'test' a cash wire transfer service at a large department store. You send cash, the check is no good, you've been scammed.
(2) You will be asked to receive & forward items shipped to your address. The goods were purchased with invalid credit cards. The police then show up at YOUR door, as you were involved in a crime.
There are more, but think these ones over.