Who: Robert Henson, NFL Free Agent
Offending tweet: @RedskinsLB51: "The question is who are you to say you know what's best for the team and you work 9 to 5 at McDonalds"
Consequence: Apologized; deleted account
Nothing endears you to the hometown fans quite like insulting their intelligence and reminding them that their jobs suck. Robert Henson tweeted the Fed Ex faithful while on IR (that's right, dude wasn't even playing). After the season, the Redskins waived him. Hopefully he didn't burn too many bridges now that he's back on the job market.