Bar fights and Irishmen go together like drunk and disorderly.

Ireland is a pretty small island, so there's a good possibility that you may be related to someone you've never met. That's what this guy thought.

You'll never know when the guy you're about to fight could be your dad, in this case, it wasn't. What do you do when you realize he isn't you father, go in for a hug and headbutt him, that's what.

Here's to keeping could be family members knocked out.