Make sure you know how to use the proper privacy functions when you use Facebook, especially if you are throwing a party and post the event online. Tessa accidently did just that. She posted her birthday party on Facebook , but made it public without realizing it. In just a few hours 15,000 people RSVPed. 1,400 strangers actually showed up and flooded the streets. Read more on TheDailyWhat.
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