The Celebrity: Marcus Vick
The Social Media Blunder: Put a "bounty" on Riley Cooper's head on Twitter in July shortly after the Eagles wide receiver got caught using the N-word on video. "I'm putting a bounty on Riley's head," he wrote. "1k to the first Free Safety or Strong safety that light his ass up! Wake him up please…"
Why It Was Such A Fail: When will people learn that you cannot threaten people on Twitter? Vick deleted this tweet shortly after it went up. But every sports blog picked it up and ran with it. It made life for Marcus—and, more importantly, for his brother Michael—a living hell for a few days.
Photo Credit: CBS Sports