None of us can say we've never said some dumb stuff that may have hurt someone else. But when you say it online, it's there forever.

In recent weeks, three Major League Baseball players have had their online mistakes as teenagers come back to haunt them. Several racist, homophobic and other offensive tweets were discovered. And those discoveries are what motivated veteran Jon Lester to tweet some advice to young ball payers, according to wgntv.com:

While you can delete the dumb things you say on social media after you realize how offensive it was, someone could've taken a screenshot and now it's forever. Jon's first piece of advice is the best...

"Don't say stupid things in the first place."