let's all be like fonzie.

"Guys, you want to be hanging out with friends who are cool, and he's just not being cool. Think about this, it's important." They looked embarrassed and left.

-- I appreciate your efforts, truly, but on this I have a feeling they may have been embarrassed on the behalf of the old earnest dude.

Before I clicked on "comments" I thought, "now how are the trolls going to make this suck?"
I applaud this man for calmly, rationally and persistently nagging the punk until he got results. Don't care about his choice of words. And yes, we should all be like Fonzie.

Good for him. Sometimes it takes a village to raise a child that thinks he/she is an adult

The best part of the story, the youth acquiesced to (group) logic.

Public shaming is a wonderful thing. I have no idea why we all don't practice it more.

Did you get that cool dude's number? I want to invite him to my party!