Everyone loves Facebook, but here is a story that will make you think twice about those privacy settings and what you post! Talk about a potential nightmare!

A teen in Australia had to cancel her 16th birthday party after her Facebook invitation went viral and close to 200,000 people said they would turn up at her house.

The Sydney Daily Telegraph reported, the girl wanted her classmates to attend.  The post on Face Book (which included her address)  said they could bring friends if they let her know.

"(It's an) open house party as long as it doesn't get out of hand," she wrote, adding that she had not had time to invite everyone individually.

But within 24 hours more than 20,000 people had replied to the public event to say they were attending and by Tuesday almost 200,000 potential partygoers had reportedly accepted the invitation.

The girl's father, who asked not to be named, said his daughter had invited "a few friends" over Facebook but had initially been unaware of the settings required to stop strangers from viewing the information.

via Teen cancels Facebook party with 200,000 'guests' - Yahoo! News.