At any age, for one who has had enough alcohol, there's hardly anything (else) that matters. That's full of unverifiable assertions
You can verify the truth of that assertion:
1. on yourself (not advisable - though I imagine everyone must have at least a rough idea about what "enough alcohol" means for himself; moreover, your memory might be impaired).
2. on other people (there's plenty of oportunity: for instance, last winter there was a drunk gentleman sleeping in a bus station; he could hardly be convinced to save his life - it took a struggle to get him on a bus, since it was freezing).