Hey Berry
He had a few, came home, but later went out and got trashed right? So that could cause the complete blackout. And how do you know he only had a few? Or how does he, really?
Vitamin B1 deficiency can really excel memory issues. Prolonged B1 problems and alcoholic dementia, wet brain, better known as Werneke's can ensue.
I'm sorry you're dealing with this. What advice would you give someone here?