These “bait-and-switch" schemes can take on several variations, but the common thread is that the original post is used to emotionally manipulate the reader and creates a sense of urgency that compels people to share the message. 

A recent example of one of these schemes popped up in a Facebook group in the Quincy, Illinois, area. The original post claimed help was needed to find an elderly man. Several hours later, it was switched to an offer to receive free money through a new app. 

The Better Business Bureau (BBB) has great tips on avoiding these scams in the podcast and at bbb.org!