Holy crap, griffin's Irish/Slav. That sounds like a volatile combination.

I used to have a buddy who was Irish/Apache - he had a newly-immigrated Irish g-grandpa in the U.S. Cavalry in southern Arizona in the old days, and, well ....

You didn't want to go drinking with him, that's for sure. He'd get you in a fight every time. I suspect there's some similarity here.