Rule No. 1 of Twitter: Never tweet.
One Denver Post writer learned that the hard way. Terry Frei took his feelings regarding Indy 500 winner Takuma Sato to social media and things did not end well. In a now-deleted tweet the former Post writer mentioned that he was "uncomfortable" with Sato winning on Memorial Day weekend and things got worse from there.
Between the original tweet and the weak apology, The Denver Post took swift action in firing Frei and apologizing to their readers.
Always remember the first rule of Twitter.