Tasha, there was an incident where a guy was removed from a plane in 2014 due to tweeting that a gate rep was rude to him. Southwest was pissed that he was bashing them, and they kicked him off the flight just to punish him, falsely claiming it was for "safety reasons" (even though nothing the guy did or said was a safety risk).

You are probably thinking of the guy forcefully dragged off a United flight because they were bumping him off the flight so their own employees could take his seat, which was an entirely different situation.