Luke Donald should have checked that Twitter setting one last time Sunday before hitting the send button.
As ESPN football analyst and former NFL coach Herm Edwards likes to say, if you're about to use social media in a moment of anger, "Don't press SEND."
That's exactly what the former No. 1-ranked golfer from England did after making a bogey at No. 18 to conclude the third round of the Deutsche Bank Championship.
Donald thought he was sending a private message via Twitter when he blasted his cell number. Then he followed that with a tweet about golf course architect Gil Hanse, who designed TPC Boston.
"Gil Hanse is a [expletive]. Haha," he publicly tweeted.
Within minutes the tweets were posted all over the Internet. His cell began ringing. Donald then issued an apology, after deleting the tweets. Too late.