1. Conor McGregor (2019)
McGregor has been embroiled in numerous unsavory incidents but this was the only one to result in a public apology. He was drinking in a local bar when he decided to buy a round of his own whiskey for the bar. However, one older man rejected his offer and told McGregor he didn’t want his whiskey. McGregor clearly didn’t appreciate this because he shamefully punched the man in the face.
Footage of the incident went viral and McGregor faced global condemnation for his action. It was disgraceful because he is a professional fighter and threw hands at an older man in his fifties. Later, McGregor apologized on ESPN and made it clear that it was a terrible mistake. But then he bought the bar and banned the man from stepping onto the premises, so he wasn’t that sorry.